CycleOps PowerTap User's Manual
Contents
1. before activating the Learn 2 sequence hub 1 To manually change the hub I D Push Select to toggle through the id Hub I D Press Mode to save 45847 hub 2 In most cases the Hub I D will not be known so you can learn the I D by 1 id pressing Mode to advance through the Hub I D settings to Learn 1 NOTE Learn 1 will search for any active hub so be sure that there are no other LEArn active hubs in the area If there are proceed to Learn 2 hub 3 Learn 1is initiated by Holding Select until Learn begins flashing 1 id When the CPU has learned the device I D it will display the I D Press Mode to advance to the next device I D If it did not learn the device Wee it will take you back to the most recent Hub I D NOTE Make sure the hub is ie awake by spinning the wheel or axle hub 4 Press Mode until Learn 2 is displayed Learn 2 is used when there are 2 Wd other awake or active PowerTap SL 2 4 hubs within a 30 foot radius LEAm 5 Initiate Learn 2 by first removing the batteries from the hub for 5 nub seconds and replacing them Then hold Select until Learn begins to 2 d flash When the CPU has learned the hub I D it will display the 1 D Press Mode to save and proceed to the next device D If it did not learn LEA the device it will take you back to the most recent Hub I D flashing 30 6 Follow the above steps for any additional sensors you may be using such as the heart rate strap spe2. Copyright Copyright 2005 All rights reserved No part of this publication may be copied photographed reproduced translated transmitted electronically or placed on digital media without the prior written consent of Saris Cycling Group Inc Trademarks Saris Cycling Group Inc PowerTap and the PowerTap logo are all registered trademarks of Saris Cycling Group Inc All other product brand or trade names used in this manual may be trademarks or registered trademarks of their respective owners Modifications Saris Cycling Group Inc reserves the right to make improvements and or updates to the prod ucts described herein at any time without notice FCC Statement of Compliance Saris Cycling Group Inc Model PowerTap SL2 4 Statement of Compliance for FCC and Industry Canada IC 6459A SL2P401 FCC ID T8P SL2P401 This device complies with Industry Canada and Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The term IC before the radio certification number only signifies that Industry Canada technical specifications were met Changes or modifications to this device not expressly approved by the party responsible for compliance with FCC regulations the manufacturer could void the user s authority to operate the
3. Console Battery Type Hub Battery Type CPU RANGE OF MEASUREMENT Power Torque Speed Distance Trip Time Cadence Total energy Odometer Heart Rate 1 5 2 4 Ghz Unlimited 9 Intervals internal recording 0 to 40 degrees c or 32 to 104 f 300 hours approx 400 hours approx Type 357 or EPX 76 2 ea ER2032 0 1999 Watts 0 1999 inch lbs 2 59 mph 3 95 KPH 0 00 to 9999 99 Miles 0 00 00 999 99 Minutes 40 140 RPM 0 99999 Kilojoules 0 99999 Miles or Kilometers 0 255 BPM Beats per Minute FIGURE 29 gt 34 HUB BATTERIES Normal battery life in the hub is 400 hours of actual ride time Use 357 or EPX76 Silver Oxide type batteries and always replace batteries in pairs Alkaline type batteries give shorter life and poorer performance NOTE After replacing batteries in the hub you need to Learn the device codes See computer setup 5 BATTERY REPLACEMENT Unscrew the plastic battery cover Use a spanner wrench or bench vise opened wide to get it started if stuck There are O ring seals that can cause the cover to resist the start of motion The threading is normal right hand Remove the battery pack A small screw driver can be used back and forth between the to ends to start to lift it out Pop the battery out by bending the plastic retaining tap back and pushing the batter up from the bottom Check that the electrical connector tab from the inside of the hub is perpendicular to the b
4. Day Sia Z nec i 5 Press SELECT to toggle through digit values to set minutes in time of day Press MODE to save 6 Press SELECT to toggle through digit values to set year month and date Press MODE to save 7 Press SELECT to toggle through storage rate values 1 2 seconds Press MODE to save NOTE Different storage rates yield different amounts of total storage time Changes to the storage rate does not effect display information Refer to TABLE 3 for appropriate storage rate TABLE 3 PowerTap SL2 4 Storage Rate Recording Rate sec Max Recording Time hrs 2096 8 Press SELECT to toggle through digit values to set the wheel circumfer ence Press MODE to save Refer to TABLE 4 for common tire information NOTE For the most accurate reading perform a roll out measurement mm of the rear wheel 24 TABLE 4 Common Wheel Circumferences Tiresize Circ mm Tiresize Cire mm 24x1 26x1 26 x 1 25 26x 1 5 26 x 2 0 26 x 2 125 27x1 27 x 1 1 8 27 x 1 1 4 700C Tubular 700 x 20C 700 x 23C 700 x 25C 700 x 28C 700 x 32C 700 x 38C 9 Press SELECT to toggle between English or Metric units Press MODE to save 10 Press SELECT to set starting odometer reading Press MODE to save NOTE Odometer settings are saved during battery changes 25 COMPUTER SETUP 2 This setup menu includes rate of display for watts speed and cade
5. applied to the hub NOT your power in watts Cadence C The number of pedal revolutions per minute The rate of pedaling is shown from 0 to 140 RPM Speed The estimated speed that you would be traveling on a flat road with no wind is displayed here Scroll to move vertically through available menu or screen options Toggle to move horizontally through alphanumeric digits Cursor the arrow located on console screen Metrics a standard of measurement MAX Max RPM Revolutions Per Minute MI Miles Per Hour KM Kilometers Per Hour UI User Interface 40 PowerTap SI Computer Navigation a ere Saris Cycling Group Inc 5253 Verona Road Madison WI 53711 1 800 783 7257 16034D 2 4 Patents issued and pending Patent 6 418 797 41
6. equipment This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a normal installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation About This Manual Thank you for your purchase of the CycleOps PowerTap SL2 4 PowerTap technology is the ultimate measure of performance by providing real time feedback on your training intensity No other equipment will give you greater performance return on your investment This manual describes the proper use and maintenance of the PowerTap SL2 4 Every person independent of skill level should read at least PRECAUSTION IMPORTANT prior to use of the PowerTap DEFINITIONS Bold Letters Bring special attention to important points and that should be read and under stood prior to using the PowerTap Italicized Letters Indicate reference to another section of the manual where further explana tions are found This manual describes the functions of the PowerTap SL2 4 and the information provided may not apply to all PowerTap models For the most current owners manual available please consult www cycl
7. the middle line FIGURE 13 Maximum Speed Either MI or KM and MX displayed simultaneously indicate the highest record ed speed since the last time data was cleared in trip mode or the selected interval in interval mode FIGURE 14 Average Power Either MI or KM and AVG displayed simultaneously indicate the average FIGURE 15 recorded speed since the last time data was cleared in trip mode or the selected interval in interval mode FIGURE 15 15 MULTI FUNCTION DISPLAY FIGURE 16 Distance D Total trip or the selected interval distance in interval mode is displayed in miles or kilometers from 0 00 to 999 99 FIGURE 16 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the D icon is displayed NOTE Distance is displayed in the same units as speed Trip Time and Time of Day T FIGURE 17 Total trip time interval time and time of day is displayed to 9 59 59 FIGURE 17 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the T icon is displayed 3 While in trip time hold SLECET to access the real time clock 4 Hold SELECT to return to trip or interval time NOTE Auto start and stop with rotation of the wheel is the default setting To customize auto start and stop
8. ties Training With Power guide PowerTuned Agent CD Link USB Cable Extra CPU Battery i Sa ai Sa ae Ue ae N System Overview cont COMPATABILITY The PowerTap SL2 4 hub is compatible with Shimano 8 9 and 10 speed systems or Campagnolo 8 9 and 10 speed systems Freehub bodies may be interchanged Reference FREEHUB REPLACEMENT for further instructions The PowerTap is available in 130mm and 135mm axle lengths Only insert the correctly spaced PowerTap hub into your frame For example only use a 130mm spaced hub in a 130mm road frame Do not force the hub into any frame Doing so may cause failure of the frame hub or both and will void the warranty Contact your dealer or Saris Cycling Group to address any special compatibility concerns WHEEL BUILDING Contact a wheel building professional or dealer for assistance in building the PowerTap SL2 4 wheel if not purchased as a complete wheel Both sides of the PowerTap should be built using only a 3x spoke lacing pattern Due to the design of the hub the load pattern is not the same as a conventional hub Slotting the hub flanges to accommodate bladed spokes is not recommend ed and will void the warranty Complete wheel building hub dimensions are listed in TABLE 2 Reference a spoke length calculator to determine proper spoke length TABLE 2 Wheel Building Dimensions Measurements Non Drive Hub Center To Flange 17 4mm 31 7mm Flange Diameter 70mm 70mm Spoke Hole Diameter
9. up the hub Batteries need replacement replace the hub batteries as shown on page 34 of the User Manual Does the word watts appear under the top line If no than you have entered cycle computer mode See cycle computer mode for further instructions Computer not seated in mount make sure computer is firmly and correctly mounted in handlebar mount Moisture in hub remove cover to see if there is any condensation on the battery cover If there is leave cover off in a dry place for 12 hours or until moisture disappears Interference with other devices make sure you are not setting up the PowerTap inside a building with a lot of electrical noise neon signs or near power lines Bring the PowerTap out side or away from the electrical disturbance to see if signal returns Also make sure you don t have any other devices on your bike such as lights magnets or cycle computer sensors PowerTap computer s batteries are low replace batteries as shown on page 34 of the User Manual We recommend using a Cone Wrench to remove the battery cap not a coin Displayed data blinks or does not function Batteries need replacement replace the computer batteries as shown on pages 34 of the User Manual Computer not seated in mount make sure computer is firmly and correctly mounted in handlebar mount Interference with other devices make sure you are not setting up the PowerTap inside a building with a lot of elect
10. word WATTS begins to flash A blinking WATTS display indicates the torque function is currently displayed 4 Press SELECT to return to the current power function FIGURE 12 IMPORTANT ZERO TORQUE Frequently the torque must be zeroed to ensure the most accurate power information is displayed If the current power display is positive or negative while coasting the torque must be zeroed This operations must be done while coasting with no tension on the chain no tension placed on the pedals and the transmission icon must be illuminated To zero torque 1 Press MODE to scroll the cursor to the top line of the main display 2 Press SELECT until current power function is displayed 3 Hold SELECT until the word WATTS begins to flash to enter the torque function 4 Hold SELECT again until 0 is shown 5 Press SELECT to return to current power The current power function will now read zero while coasting 14 SPEED FUNCTION The middle level of the main display shows current max and average speed readings 1 Press MODE to scroll the cursor to the middle line of the main display 2 Press SELECT to toggle through the speed function options FIGURE 13 Current Speed Speed is displayed in either miles per hour MI or kilometers per hour KM up to 99 9 mi hr or km hr in 0 1 mi hr or km hr increments Current speed readings are displayed when only MI or KM appears below
11. 2 5 System Overview cont SYSTEM INSTALLATION 1 Insert Wheel Into Frame Insert the PowerTap SL2 4 wheel into the frame Make sure the axel is correctly positioned in the dropouts and secure the wheel in place with a steel skewer 2 Attach Computer Shoe to Handlebar or Stem The shoe can be mounted on either the handlebar or stem Secure the receiver shoe with cable ties Slide the receiver shoe in the direction of the arrow as depicted in either FIGURE 2A or 2B depending on mounting location 2A Attach Receiver mount to Handlebar 2B Attach Receiver mount to Stem Slide shoe in direction of arrow onto the base Slide shoe in direction of arrow onto the base E SS Receiver Shoe Sher soe S Sv 4 ae q 3 Place Computer into Shoe FIGURE 5 i X Place the computer into the mounting shoe on the handlebar or stem tp Line up the slots on the base of the computer with the bracket and slide computer toward the rider FIGURE 5 NOTE Ensure the computer is fully f inserted onto the receiver shoe for proper data transmission N w Cc gt 7 4 Heart Rate Monitor Strap d Position the heart rate monitor strap on your torso as pictured in FIG FIGURE6 URE 6 The strap should rest just beneath the pectoralis muscles of t j the chest For best results slightly moisten the electrodes where con tact is made with skin The heart rate strap must be worn to enable the heart rate function NOTE The chest strap for the Pow
12. d do not deliberately place the PowerTap or its components in water or under high pressure sprays Therefore caution should be used when riding in rain Following such rides special precautions should be taken including removing the PowerTap plastic twist cap and allowing the hub to air dry e Wash off dirt with a cloth soaked in a weak mixture of neutral detergent and water and wipe excess water off with a dry cloth Avoid spraying the unit directly with solvent mixture Do not use thinner or other solvents to clean parts as they may dissolve the plastic console casings e If you are not familiar with bike maintenance please contact a professional bicycle mechanic before servicing The power measuring components of the PowerTap are highly complex and should only be serviced by Saris Cycling Group e The plastic cover on the hub should be removed only when replacing batteries or when allowing the unit to dry after submersion in water Repeated disassembly may compromise the effectiveness of the O ring seals O rings should be inspected and replaced if necessary when ever the battery cover is removed Use a light coating of grease when reinstalling the battery cap on the O rings During the course of repair do not remove the torque tube There are no serviceable parts inside Special tools are required for reassembly and calibration If problems are suspected contact Saris Cycling Group directly at 800 783 7257 001 608 274 6550 Precautions Im
13. ed and cadence sensors SPd speed sensor Cd cadence sensor HS heart rate sensor 31 Maintenance amp Specifications The following information will help you keep your PowerTap SL2 4 running properly If you are not familiar with hub maintenance please consult a professional bicycle mechanic before servicing During the course of any repair do not remove the torque tube There are no user serviceable parts inside Special tools are required for reassembly and calibration If problems are suspected contact Saris Cycling Group BEARINGS The power measuring components inside the PowerTap SL2 4 are highly complex and should only by serviced by Saris Cycling Group The bearings are sealed type 6901RS and do not require replacement Field replacement can cause permanent damage to the power measuring electron ics and result in compromised sealing and performance If bearing problems are suspected please contact Saris Cycling Group at 1 800 783 7257 for a return authorization The PowerTap SL2 4 uses a modern 4 bearing design and does not require any tensioning adjustment FREEHUB The grease in the freehub pawls should be replaced if it becomes contaminated with water Replace the seal at the same time contact Saris Cycling Group for replacement parts Saris Cycling Group recommends the following types of grease to ensure proper functioning Kluber Isoflex NB52 o Dupont Krytox GPL226 Warning Failure to use the proper grease on the f
14. ed since the last system reset is displayed in miles or kilometers To manually input the your odometer reading see COMPUTER SETUP 1 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the O is displayed FIGURE 21 18 Heart Rate FIGURE 22 Current heart rate is shown up to 255 beats per minute BMP You must wear the ps heart rate chest strap to enable the heart rate measurement function NOTE The PowerTap SL2 4 uses a coded chest strap 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the is displayed FIGURE 22 HEART RATE MONITOR MODE Access to the Heart Rate Monitor Mode is also gained in the current heart rate mode This function allows the PowerTap computer to function as a heart rate monitor in the absence of the PowerTap hub NOTE In Heart Rate Monitor Mode heart rate is displayed on the top line of the main display and power data is no longer displayed 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the icon is displayed 3 Hold SELECT and the words watts disappears from below the top line 4 To return normal PowerTap functions hold SELECT until the word WATTS is displayed
15. eops com Table of Contents About this Manual Precautions Important 5 System Overview 7 The PowerTap System 7 Preparing for Installation 7 Compatibility 8 Wheel Building 8 System Installation 9 General Computer Operation 12 Display Levels 12 Display Modes 12 Finding Sensors Clearing Data Buttons 12 Power Conservation 13 Computer Navigation 14 Power Function 14 Torque Function 15 Zero Torque 15 Speed Function 16 Multi Function 17 Cycle Computer Mode Heart Rate Monitor Mode Interval Mode 21 Interval Memory Mode 22 Computer Setup 23 Computer Setup Main Menu 23 Computer Setup 1 24 Computer Setup 2 27 Computer Setup 3 28 Computer Setup 4 29 Computer Setup 5 Maintenance amp Specifications 31 Bearings 31 Freehub 31 Freehub Replacement 31 Computer Batteries 33 Technical Specifications 33 Range of Measurement 33 Hub Batteries 34 Battery Replacement 34 Test Mode 35 Trouble Shooting 37 Glossary a 39 Precautions Important Before beginning any exercise program consult your physician e Keep your eyes on the road Do not become overly engaged with the PowerTap display We recommend familiarizing yourself with computer functions while stationary e The computer receiver and hub are water resistant not water proof Avoid sustained water contact an
16. erTap SL2 4 uses a coded frequency and is not compatible with other manufactur f 2 A er s chest straps i ma TI 5 Verify Installation FIGURE 7 Check to make sure all components are properly secured Spin the rear wheel and verify that in the upper left hand corner of the com puter the transmission icon illuminates FIGURE 7 This indicates the hub is properly transmitting a signal to the receiver and com puter If the transmission icon is not illuminated consult Finding Section Sensors for further instructions 10 General Computer Operation DISPLAY LEVELS The computer has three 3 main display levels TRANS ICON WER ISPLAY Top Power Middle ___ Speed reat PEED Bottom gt Multi Function DISPLAY DISPLAY NOTE These locations only apply to trip and interval modes and does not apply to Cycle Computer or Heart Rate Monitor Function See COMPUTER SETUP 4 to customize display options DISPLAY MODES J The computer has two 2 main modes of operation MODE LEFT BOTH SELECT RIGHT Changes active Clear data Select function 1 Tri p mode Enter setup 2 Interval Hold MODE to toggle between display modes BUTTONS There are two 2 buttons on the computer 1 Mode 2 Select NOTE BRACKETED words indicate buttons There are five 5 types of button presses 1 Press MODE or SELECT a single press and release of either MODE or SELECT Used for entering different modes a
17. hen the hub is asleep To wake the hub spin the wheel and verify the transmission icon is illuminated 12 Computer Navigation POWER FUNCTION The top level of the main display shows current max and average power readings 1 Press MODE to scroll the cursor to the top line of the main display 2 Press SELECT to toggle through the power function options For accurate power readings it is important to frequently zero the torque see ZERO TORQUE FIGURE 9 Current Power Power is displayed in watts from 0 1999 in 1 watt increments Current power readings are displayed only when the word WATTS appears below the top line FIGURE 9 NOTE If WATTS does not appear under the top line the computer is in the Cycle Computer Function To return to power readings see CYCLE COMPUTER MODE Maximum Power Both WATTS and MX displayed simultaneously indicate the highest recorded interval in interval mode FIGURE 10 Average Power Both WATTS and AVG displayed simultaneously indicate the average power output since the last time the data was cleared in trip mode or the selected interval in interval mode FIGURE 11 TORQUE FUNCTION FIGURE m 2 Shows the torque placed on the hub in inch pounds To display torque in trip mode 1 Press MODE to scroll the cursor to the top line of the main display 2 Press SELECT until the current power function is displayed 3 Hold SELECT until the
18. ion source Default pedal then hub Pedal crank only Hub hub only NOTE An optional cadence sensor is available sold separately Press MODE to save 28 PRO BATTS PRO BATTS iR 4 The PowerTap can be used as a cycle computer or heart rate monitor Press SELECT to toggle through mode options watts mi and power meter mode mi and cycle computer mode heart rate monitor mode Press MODE to save 5 Press SELECT to toggle through auto start options mi and data allows trip time to count when wheel speed is registering Trip time stops 3 sec after if speed is not registered and data allows trip time to count as long as a heart rate signal is registered This function is useful in the transition from cycling to running and vice versa Press MODE to save 29 COMPUTER SETUP 5 This setup allows the CPU to learn a new device or sensor such as the hub heart rate strap and optional cadence sensor NOTE This process only needs to be used if a new sensor or hub is being used in conjunction with your CPU or vice versa and if batteries are changed in the hub or chest strap There are 2 Learn sequences 1 and 2 Learn 1 is used when you have switched sen sors or the CPU and there are no other like bikes with PowerTap SL2 4 within a 30 radius Learn 2 is used if there are other devices in the area but requires you to remove and reinsert the battery
19. mware version is available at www cycleops com FIGURE 26 2 Extended hold of MODE and SELECT simultaneously enters com puter setup function indicates by a flashing E NOTE Continue to hold through clear all screen Releasing hold early will clear all current data 3 The setup mode displays three 3 letters and numbers 1 4 Each letter represents a setup menu A flashing alphanumeric character indicated current selection FIGURE 27 E exit return to ride mode d restore default settings T test mode FIGURE 27 123 45 setup menus 4 Press SELECT to scroll to the desired setup mode 5 Press MODE to begin setup GycteOns O 22 COMPUTER SETUP 1 This setup menu includes time of day date storage rate wheel circumference units of measure odometer NOTE You are unable to move back to a previously viewed settings You must restart setup 1 to make corrections You may hold MODE and SELECT to save and exit setup a 1 From the computer setup main menu press SELECT and scroll until the Ed number one 1 is flashing Press MODE to enter setup mode W234 Sip 2 Press SELECT to toggle between a 12 or 24 hour clock Press MODE to 2 save i Sip 3 Press SELECT to toggle between AM A or PM P Press MODE to save P 4 Press SELECT to toggle through digit values to set hours in time of day Press MODE to save 23 Year sa a3 01 01 Month
20. nce NOTE You are unable to move back to a previously viewed settings You must restart setup 2 to make corrections NOTE These settings do not effect the data stored for download This function can be used to allow better pacing during time trial efforts A greater rate of dis play allows for a slower update of the display aa 1 From the computer setup main menu press SELECT and scroll until the Ed number two 2 is flashing and press MODE to enter setup mode 1234 PRO AY LATS 2 Press SELECT to toggle through 1 2 3 5 10 30 rate of display values in e 2 seconds for watts Press MODE to save PRO 3 Press SELECT to toggle between 1 2 3 5 10 30 rate of display values E ss B in seconds for speed Press MODE to save PRO 4 Press SELECT to toggle between 1 2 3 5 10 30 rate of display values G 5 in seconds for cadence Press MODE to save E AL 6 Press SELECT then MODE to reset default settings Press MODE to save changes 26 COMPUTER SETUP 3 This setup menu includes zero readings for power speed and cadence NOTE You are unable to move back to a previously viewed setting You must restart setup 3 to make corrections NOTE These settings are useful for determining you average when pedaling only and do not effect the data that is stored for download PRO 1 Press SELECT to toggle between yes and no for zeros included in aver m ys age of wa
21. nd functionality 11 2 Hold MODE or SELECT a single button press and hold of either MODE or SELECT for 2 sec Used for initiating a new Interval 3 Press MODE and SELECT simultaneously press and release of both MODE and SELECT 4 Hold MODE and SELECT simultaneously press and hold both MODE and SELECT for 2 sec NOTE Continuing to hold longer than 2 sec and releasing will clear all data 5 Extended Hold MODE and SELECT simultaneously press and hold of both MODE and SELECT for greater than 5 sec Used for initiating scrolling menu SCROLLING MENU SCROLLING MENU Find If MODE and SELECT are released When Find is displayed the computer will find Search for the PowerTap hub dr If MODE and SELECT are released when clr is displayed ALLDATA WILLBEERASED SEt If MODE and SELECT are released When SEt is displayed on the top level of the Screen a flashing E d and t on the middle Level and 12345 on the bottom level E exit return to ride mode d restore default settings T test mode 1234 setup menus POWER CONSERVATION The computer and hub have power saving features to prolong battery life The computer powers down the display after four 4 minutes of inactivity Press either MODE or SELECT to activate the display Similarly the hub powers down after five 5 minutes of inactivity The transmission icon will not be visible w
22. ottom of the battery pocket If the tab gets bent gently press it back to perpendicular with anon sharp tool Slide the battery pack back into position along the center core As the battery is engaged a small increase of resistance to installation should be felt as the electrical connections are made Thread the cap all the way back on Replacement O rings and battery packs are available from Saris Cycling Group 35 TEST MODE 1 From the computer setup main menu press SELECT and scroll until the letter t is flashing Press MODE to enter setup mode 2 Press MODE to scroll through the different test modes as shown by the number NOTE Press and hold MODE and SELECT simultaneously returns to standard operation 0 Model and version Displays the model on the middle line and version number on the bottom line 1 LCD Test Press SELECT all the LCD segments are displayed Press SELECT to return to the normal screen 2 Heart Rate Signal Test NOTE The heart rate signal is illuminated The middle line display flashes 88 with each heart rate blip received 3 Torque Information NOTE The T icon is displayed This displays information about the internal workings of the torque readings The bottom display is the offset torque value directly sent by the hub torque with no correction applied The hub sends a value of approximately 512 as the zero point The middle line display is the correction offset value curren
23. portant cont e The PowerTap wheel does not include a quick release skewer CycleOps recommends using a steel skewer Both sides of the PowerTap should be built using a 3x spoke lacing pattern Because of the design of the PowerTap torque is transmitted through the hub to the non drive side For additional questions please consult WHEEL BUILDING e Failure to adhere to these precautions may cause premature failure or incorrect operation of the unit and may void the warranty Please register your PowerTap at www cycleops com System Overview THE POWER TAP SYSTEM The PowerTap system includes a power measuring hub which measures torque and wheel speed This information is transmitted to a computer mounted on the handlebar or stem Heart rate data is transferred via A coded telemetry signal from the chest strap monitor The data is then integrated to display current average and maximum biometric information PREPARING FOR INSTALLATION The PowerTap SL2 4 hub comes either alone or in a pre built wheel If purchased alone the hub must be built into a complete wheel prior to use Other items necessary for installation and not provided include a cassette spoke protector reflectors skewer rim strip tire and tube clincher rim or glue and tubular tire tubular rim See TABLE 1 to verify package contents TABLE 1 Package Contents Item PowerTap hub or built wheel PowerTap computer Chest strap Foam mounting tapes Cable
24. reehub pawls could result in engagement problems FREEHUB REPLACEMENT See Figure 28 for illustrations Use 5mm hex wrench and 17mm bike wrench and remove both end nuts from the axle Remove the axle Remove the freehub and spacers Remove all old grease from the freehub ratchet ring 32 Install spacers per the illustration Install axle Apply 2 grams of high quality freehub grease to the ratchet ring Grease the V seal and place it on the freehub and install onto shaft Replace end nuts Torque end nuts to 12 Ibs ft SL Hub for Shimano system Aluminum washer H Steel washer l z installed here aa ajil installed here FIGURE 28 ie No aluminum washer Steel washer instand hersi SL Hub for Campagnolo system 33 COMPUTER BATTERIES The PowerTap SL2 4 has batteries in the hub and computer Computer bat teries typically need to be changed every 400 hours of use The computer will also say low bat when the computer battery needs to be changed This message is displayed after a clr is performed To replace computer battery Type CR2032 remove the computer from the mount Remove the battery cover on the back of the computer use a cone wrench to remove the bat tery cover exchange the battery and replace the cover as shown below FIGURE 29 TECHNICAL SPECIFICATIONS Accuracy Signal Transmission Interval Data Storage Interval Display Operational Temperature Battery Life Hub Battery Life
25. rical noise neon signs or near power lines Bring the PowerTap outside or away from the electrical disturbance to see if signal returns Also make sure you don t have any other devices on your bike such as lights magnets or cycle computer sensors 38 Power seems incorrect Torque value is not zeroed to manually zero torque go to current watts and hold down the select button until watts disappears Torque is now being displayed To zero torque hold down the select button until the value reads zero To exit torque mode press select once If read zero the torque does not seem to recalibrate the unit call Saris Cycling Group customer service at 1 800 783 7257 Speed seems incorrect Wheel size incorrect refer to the chart on page 25 and enter the correct size in setup mode Transmission icon flashes rapidly Hub batteries need replacement replace the hub batteries as shown on page 34 of the User Manual Glossary Computer Refers to the yellow handlebar or stem mounted device Heart Rate HR This displays current HR Max and average values are displayed if MAX or AVG is selected NOTE A non coded chest strap must be used in order for the console to 39 pick up heart rate Watts Real time display of the effort you are putting in to pedaling the bike This is your power reading If you press the SELECT while the cursor is pointing to Watts the line changes to inch lbs This is the raw torque value that is being
26. see COMPUTER STETUP 4 Cadence C FIGURE 18 Cadence is measured at the hub by analyzing the way a rider applies torque through the pedal stroke since there are natural power differences in the pedal stroke The rate of pedaling is shown from 20 to 240 RPM NOTE An optional wireless cadence sensor is available to measure cadence at the crank 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the C icon is displayed FIGURE 18 17 Average Cadence C amp AVG FIGURE 19 The average cadence displays data since the last time data was cleared in trip mode or the selected interval in interval mode Average cadence is displayed in RPM 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the C and AVG is displayed FIGURE 19 Energy Expenditure E FIGURE 20 The total work done over the course of the trip or interval is shown in kilojoules This value is a measure of the total energy expended over the course of your ride This is roughly equivalent to dietary calories expended 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the E is dis played FIGURE 20 Odometer 0 FIGURE 21 Total accumulated distance travel
27. tly stored in the computer This is the value that is changed when you do a manual zeroing of the torque The top display is the corrected actual torque the bottom value minus the middle value 4 Standard Test File This mode writes a small test file to the memory Press SELECT and the bottom lines says run and then yes when the file is written This file can then be downloaded 5 Communication Loop Back Test When looking at the front side of the computer use a coin or paper clip to short out the two pins 36 on the left side Press SELECT The bottom line will say run and then yes if it passes the test correctly If the pins are not shorted together or there was a problem the display will say no This test can be repeated by pressing SELECT 6 Fast Memory Test This tests the memory in the computer Press SELECT and run is displayed on the bottom line When the test is completed and it passes it says yes If the test should fail the bottom line will say no 37 Troubleshooting No display on computer screen Computer is asleep Press MODE or SELECT on the computer to wake up the computer Batteries need replacement replace the computer batteries as shown on pages 14 15 of the User Manual Computer is too cold operating temp is 32 to 110 degrees Fahrenheit Computer display is on but there is no transmission icon Hub is asleep spin the wheel to wake
28. tts Press MODE to save YES 2 Press SELECT to toggle between yes and no for zeros included in aver PRO age of speed Press MODE to save a AY PL YES 3 Press SELECT to toggle between yes and no for zeros included in aver PRO age of cadence Press MODE to save 3 D YES c A 7 4 Press SELECT to toggle between yes and no for auto zero function PRO Normally leave at yes NOTE Auto zero is used for track bike use where 3 large negative torque may be present Hub modification to fixed hear is SES necessary 27 COMPUTER SETUP 4 This setup menu includes sleep time locations of display cadence source cycle computer mode heart rate monitor and auto start stop You are unable to move back to a previously viewed set tings You must restart setup 4 to make corrections PRO y 4 SLEEP PRO 1 Press SELECT to set how many minutes the computer will stay awake after not receiving a valid speed or heart rate signal Press MODE to save NOTE The shorter the sleep time the better the battery life 2 Press SELECT to determine what is displayed in the middle line mi speed c cadence heart rate Press MODE to save The selected metric will flash during the ride NOTE If heart rate or cadence is selected speed is not displayed This is useful for intervals when power heart rate and cadence are most important 3 Press SELECT to determine cadence informat
29. under the top line of the main display 19 Average Heart Rate AV FIGURE 23 This value is a running average of the heart rate in BPM If there is no heart rate information this will display as 0 1 Press MODE to scroll the cursor to the bottom line of the main display 2 Press SELECT to toggle through the multi function displays until the AV is displayed FIGURE 23 INTERVAL MODE FIGURE 24 The computer has two display modes The trip mode shows total trip met rics and the interval mode displays interval specific information The inter val mode functions as a lap marker and is essentially always on To begin the first interval or advance to the next interval Press and release MODE and SELECT simultaneously NOTE Do not hold both buttons down as you will clear all data from the computer In trip mode INT and the new interval number will appear and disappear FIGURE 24 The computer can mark an unlimited number of intervals although after nine 9 the marker will begin to count back at one 1 For example interval ten 10 is displayed following interval 9 as one 1 To view interval specific data power speed and multi function display from any location on the display 1 Hold MODE until INT appears on the left hand side of the display The INT and interval number will remain illumined as a forth line in the main display FIGURE 24 The data displayed is that of the c
30. urrent interval number shown 2 To exit back out of interval mode hold MODE until INT disappears 20 INTERVAL MEMORY MODE To access stored interval data for the previous 9 intervals only 1 Enter the interval mode hold MODE until INT appears on the left hand side of the display 2 Press MODE to scroll until the INT flashes NOTE INT now constitutes a fourth level of dis play 3 Hold SELECT and the memory icon M appears next to the interval number FIGURE 25 4 With INT flashing press SELECT to advance to the interval you wish to view 5 Press MODE scroll the cursor to the line of information you wish to view NOTE Recovery periods as well as work periods are displayed in memory mode To exit back out of the interval memory mode hold SELECT until the memory icon disappears The computer is now displayed in the interval mode To exit from the interval mode from any location on the display hold MODE until INT disappears FIGURE 25 21 Computer Setup The setup feature has four 4 main modes You do not have to complete all four to change set tings Please reference each mode to determine the correct location to begin NOTE The com puter illustrations for each mode display the factory default settings COMPUTER SETUP MAIN MENU 1 Press either MODE or SELECT to activate the computer NOTE The version of firmware is displayed upon startup The most updated fir
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