SUSPENSION FORKS
Contents
1. RL cartridge 3 di a RL RC amp RLR cartridge RL RC amp RLR cartridge RL cartridge INSTALLATION OF REMOTE LOCK OUT RL RC amp RLR cartridges Install the Remote lockout lever with an Allen wrench 3 mm on the right of your left hand side grip on the handlebar Make sure there is enough space between the grip and the lockout lever min 3 mm Remove cover with a 2 5 mm Allen wrench Release the cable fixing bolt with a 2mm Allen wrench Thread the cable through tension slightly and fasten Let the control cable protrude by about 15 mm to prevent jamming 5 Install the cover adjust cable tension if necessary If the fork is not locking the tension of the cable is probably too low In this case you should increase the cable tension by turning the adjusting screw counter clockwise If the cable tension is too high and the fork lock cannot be released turn the adjustment screw clockwise INSTALLATION OF THE REMOTE LOCKOUT RL cartridges Install the Remote lockout lever with an Allen wrench 3 mm on the right of your left hand side grip on the handlebar You can then reinstall the brake and the control lever Pull the control cable from the front through the cover Slightly tension the cable Tighten clamping screw for cable with 2 mm Allen wrench Let the control cable protrude by approx 12 mm and cut off adjust cable tension if necessary Use an end2. User Manual SUSPENSION FORKS ENGLISH TABLE OF CONTENTS Important safety information Before every ride POPP eee ECE E EE EEE SOLE EE EOTEE HELE ESEOEE EEE SEEHE TOLLE HE LEOELEESESELERELEEELELESEL EE LEEEEELELEEEHELEEE EEE LEEEE EL ESEE EDO LEEHEELOELEELE Fork assembly Assembly instructions Adjusting the double crownt Cee ececereseccceeerereeseeeTerereEeeeeereEeLeLEeLEZELELELEEEEEEEEEEOLEEEE ELLE EEE ELE LEEEH HEEL EEE EDO SESE LELELEEEEEEEEEEe Tyre clearance Tyre clearance test Q LOC assembly instructions Cem eeeeeereceeerecrereereeeeeEeseEEEEeLEEEEEEEEEELEEHDELEEE DE DEEEE EL EEE EEE EEEELELEEH EE LLEEELEEEEEELESEEHELEEEHLEL EEL OE LOS 20 mm cross axle assembly Air pressure and SAG o CO N N O O a 9 A OQ Adjustable air chamber volume eesocoooocosococososocoooocososocooosoococososocooooocoocosooocoooooooosooooooooosoooococososooooooooooooooooooooo Coil spring preload _ Lock out systems POCO OH OES EEEOHE EEE E HOHE ESO SOOO EEO HSE TES E HOHE SEE TOTS E OOOH OE TOO EOOEETE OTOH EE SOHO O ETHOS OTE OHOOEEEEOOHOET ECHOES EOE TESE EEE EDEEEEEEOOEOEOE Installing the remote lock out cescocoooooocococoooooooooococosoooooooooocososocosoooooocoooooooooococosooosoooococosooocoooooooooooooooooooooooooooo _ N Adjusting rebound damping N Adjusting compression damping Travel adjust 13 cecosocoooooooocososocoooooocooooooocoooooooooocooococoooso
3. cap to protect against the sharp cable end the fork is not locking the tension of the cable is probably too low In this case you should increase the cable tension by turning the adjusting barrel at the Remote lock lever counter clockwise If the cable tension is too high and the fork lock cannot be unlocked turn the adjustment screw clockwise ADJUSTING REBOUND DAMPING Rebound damping allows you to adjust the speed with which the fork rebounds after it was compressed Turn the adjusting screw counter clockwise less damping to increase the extension rebound speed of your fork To reduce the extension rebound speed turn clockwise more rebound To find the right rebound speed turn the adjusting screw as far clockwise as possible slowest extension Put your entire body weight on the suspension fork and let it rebound abruptly Now decrease the rebound gradually fastest extension and repeat this procedure until the suspension fork almost jumps when it rebounds The quicker the fork rebounds the more traction it provides Rebounding too slow achieves the opposite ADJUSTING COMPRESSION DAMPING 12 Compression damping adjusts the compression speed of the suspension fork A low speed and a high speed compression setting are available not available on all models Low speed compression Setting for slow impacts deep bumps potholes High speed compression Setting for fast impacts small bumps potholes at high f
4. used regardless then this can result in accidents serious injuries or even death gt Are there any cracks dents or deformations on the fork or on another part of your bicycle If this is the case contact a trained and qualified bicycle mechanic to inspect your fork and the bicycle gt Is oil leaking from the fork Also check hidden areas such as the underside of the fork crown If this is the case contact a trained and qualified bicycle mechanic to inspect your fork and the bicycle gt Put your full body weight onto the fork If it seems too soft i e if the pressure for an exact negative spring stroke is incorrect pump up the fork until the desired value is reached Further information can also be found under AIR PRESSURE AND SAG gt Make sure that the brakes are properly installed adjusted and functioning This also applies to all other bicycle parts such as the handlebar pedals crankset saddle seat post etc Further informa tion can also be found in the operating instructions of the other parts manufacturers Make sure the wheels are perfectly centred so that the suspension fork and the brake system do not touch gt If you are using a quick release system to attach your wheelset make sure the quick release has the required clamping force If you are using a thru axle system make sure all screws are tight ened to the proper torque gt Check the cable length and the cable routing of the components The c
5. SUNTOUR supported by USUL Corp 910 Watson Avenue Madison Wisconsin 53713 USA Phone 1 0 608 229 6610 Email service usulcorp com
6. a single rider These instructions contain important information for the proper assembly maintenance and servicing of your suspension fork Please note that exper tise and special tools are required in order to install maintain and service SR SUNTOUR forks General knowledge of mechanics is likely to be insufficient to repair maintain and service a suspension fork Therefore we recommend having the fork installed maintained and or serviced by a trained and qualified bicycle mechanic Improper installation service or maintenance can result in the product malfunctioning accidents injury or even death gt Ride while wearing appropriate protective clothing only This includes wearing a fitting and firmly seated helmet Additional protective components should be used depending on your riding style Make sure that your equipment is always in perfect condition gt Select the proper fork based on the frame height and your personal riding style Installing a fork that does not correspond to the geometry of your frame can cause the fork to become damaged and will void the warranty Installing a suspension fork changes the geometry of the bicycle and how it is used Get used to it gradually and practice Make sure you properly assess your limits and do not go above them gt If you are using a bicycle rack that requires the front wheel to be removed the quick release skewer must always be open if it is not used to fasten the bicycle If the
7. ables must not interfere with the steering movements gt If you are using front reflectors for use on public roads make sure they are clean and properly installed gt Gently bounce your front wheel off the ground and check listen whether there are any loose parts FORK ASSEMBLY WARNING SR SUNTOUR recommends having the fork installed maintained and or serviced by a trained and qualified bicycle mechanic Expertise and special tools are required to install SR SUNTOUR forks General knowledge of mechanics is likely to be insufficient to repair maintain and service an SR SUNTOUR suspension fork If you prefer to assemble the fork yourself please have it inspected by a trained and qualified bicycle mechanic after assembly Note that incorrectly installed forks are extremely dangerous and can lead to damage to the product or cause serious injuries and even death to the rider ASSEMBLY INSTRUCTIONS Note All mounting screws must be tightened with the respective torques specified by the manu facturer 1 Remove the old fork from your bicycle Remove the headset cup from the fork 2 Measure the length of the steerer tube of your old fork and compare it to the length of the steerer tube of the SR SUNTOUR fork The standard length of SR SUNTOUR suspension fork steerer tubes is 255 mm It may be necessary to shorten the steerer tube to the correspond ing length You can use the following formula to determine the proper length o
8. are not covered by this warranty This warranty does not apply to conventional wear and tear The following parts are subject to wear dust seals moving rubber parts O rings fork stanchions lock out and travel adjust cartridges Please note that all SR SUNTOUR cartridges and metal bushings have a limited warranty of one year Plastic slider sleeves have a limited warranty of six months For more information visit our website at www srsuntour cycling com There you will also find gt Forms for product registration and services gt Identify your product instructions Suspension fork glossary gt Technical videos gt Instruction manuals gt Exploded drawings E www facebook com srsuntour SR SUNTOUR INC TAIWAN 7 Hsing Yeh Road Fu Hsing Industrial Zone Chang Hua Taiwan R O C Phone 886 0 4 769 5115 Fax 886 0 4 769 4028 Email orders srsuntour com tw SR SUNTOUR EUROPE GMBH Sales Customer Support and Technical Services Riedstrasse 31 83627 Warngau Germany Phone 49 0 8021 50 793 30 Email service srsuntour cycling com Copyright 2014 SRSUNTOUR Inc All rights reserved SR SUNTOUR NORTH AMERICA 14511 NE 10th Avenue Unit E Vancouver Washington 98685 USA Warranty and Service Center Phone 1 360 737 6450 Email service srsuntourna com Website www srsuntourna com Aftermarket Sales and Marketing Phone 1 855 205 BIKE 2453 Email ssna srsuntourna com SR
9. differently contact your specialised dealer immediately and have it inspected MAINTENANCE PLAN gt after every ride Clean the fork tubes and dust seals and maintain with an oily cloth check stan chion tubes for scratches gt every 50 hours Maintenance 1 at dealer gt every 100 hours or once a year Maintenance 2 at dealer ideally before winter time in order to protect all parts from the effects of weather by proper greasing MAINTENANCE 1 Check function of fork check torques of mountings screws and nuts at dropout 10 Nm check for scratches dents cracks discolouration signs of wear and signs of minor corrosion main tain with oily cloth MAINTENANCE 2 Maintenance 1 disassembly cleaning the entire fork inside and out cleaning and lubricating dust seals and slider sleeves checking torques adjusting to the riders liking Before disassembly check the slider sleeve play of the fork To do so apply the front wheel brake and gently push the bicycle back and forth at the handlebar stem shaft Replace the slider sleeves if the play is too big more than 1 mm at the fork brace LIMITED WARRANTY 14 For normal use SR SUNTOUR guarantees that the suspension fork is free from material and workmanship defects for two years from the date of purchase This guarantee of SR SUNTOUR Inc applies only to the original purchaser and is not transferable to third parties A claim under this warranty may be made
10. e fork can be adjusted to the rider s weight and pre ferred riding style via the spring preload It is not the coil spring hardness that is set but the spring preload This reduces the SAG of the fork when the rider sits down A semi hard spring is used by default Turn the preload adjust knob clockwise to increase the spring preload and turn it counter clockwise to reduce it Two additional spring stiffnesses are available for SR SUNTOUR suspension forks softer and harder than the standard coil spring LOCK OUT SYSTEMS 10 The lock out function of the SR SUNTOUR forks prevents swinging up dipping of the suspension fork when riding standing up or riding uphill The fork is not locked 100 A couple of millimetres of the suspension travel the so called anti blow off system remains This system protects you when riding in demanding terrain in case you forgot to unlock the fork But regardless you should never switch your fork to lock out mode when rid ing in demanding terrain or when jumping The fork may become damaged when it is compressed under a high load This can also lead to accidents and injuries SPEED LOCKOUT Turn the Speed lock out lever by 90 clockwise to lock the fork Turn it counterclockwise to release the lock LO RC cartridge LO R cartridge LO cartridge REMOTE SPEED LOCKOUT Press the Remote lock lever on the handlebar to lock the fork Press the button below that to release the lock
11. ease is locked If the fork is equipped with a thru axle system then all screws must be checked for proper torque ADJUSTING THE DOUBLE CROWN Rux series WARNING Pay atten tion to the minimum and maximum values Do not deviate from these numbers CLAMPING OF THE CROWNS It is extremely important to properly tighten the clamps for the fork stanchions and steerer tube Evenly and gradually tighten the screws in a criss cross pattern i e top left bot tom right bottom left top right until the proper torque of 6 8 Nm is reached If you do not heed this information you risk having a loose fork crown steerer tube and fork stanchions TYRE CLEARANCE Please check in advance whether the wheel and fork are compatible The necessary information can be found on the side of the tyre Every tyre has a different external diameter width and height of the tyre For this reason check the distance between your tyre and the fork to make sure your tyre does not touch the fork under any circumstances Bear in mind that the narrow est part of the fork is at the brake boss level If you want to remove your tyre you must release the air from your tyre among other things in order to fit it through the brake boss socket Note Using a tyre that is larger than the maximum tyre size for your fork is very dangerous and can cause accidents serious injuries and even death TYRE CLEARANCE TEST 1 Depressurise the fork if e
12. f the steerer tube Head tube of the frame Headset height Spacer if applicable Height of the handlebar stem clamp 3 mm distance Length of the steerer tube Do not add a thread if your SR SUNTOUR fork is shipped with a threadless steerer tube Steerer tubes made by SR SUNTOUR are uniquely press fitted and cannot be disassembled Do not attempt to replace the steerer tube with a threaded steerer This voids the warranty of the fork It may cause the product to malfunction or cause serious injury or even death to the rider 3 Install the fork headset cup 30 mm for 1 1 8 firmly at the top of your fork crown Reattach the fork assembly headset spacer handlebar stem to the bicycle Adjust the headset until no more play is observed Further information can be found in the installation instructions of the headset manufacturer 4 Install the brakes according to the manufacturer s instructions Properly adjust the brake pads If you are using a disc brake install the brake only into the designated receptacle hole for the disc brake Use only cantilever brakes that are made for use without support system Check and heed the assembly instructions of your brake manufacturer Select the proper length for the brake cable so that it does not interfere with the fork 5 Reattach the front wheel Make sure that all clamping levers and nuts are set and tightened properly at least four threads must engage in the nut when the quick rel
13. only at the retailer where the bicycle or the SR SUNTOUR suspen sion fork was purchased The original receipt must be presented as proof of purchase LOCAL LAW This warranty gives you specific legal rights Depending on the state USA or province Canada or the country in which you live you may have other rights that vary from the war ranty set forth herein These conditions should be adapted to the local regulations so that they correspond to these laws LIMITED WARRANTY This limited warranty does not apply to damage to the suspension fork that is caused by one of the following improper installation dismantling and reassembling wilful damage altera tions or modifications to the fork misuse or abuse of the product or the use of this product for a purpose other than the intended use accidents crashes improper maintenance improp erly carried out repairs The obligations under this Limited Warranty are limited to repair or replacement of the suspension fork or any part thereof within a period of two years when a material or workmanship defect exists Beyond the above conditions SR SUNTOUR makes no direct or indirect guarantee that this product is suitable or tradable for a particular purpose SR SUNTOUR shall not be liable for incidental or consequential damages under any circumstances Damage caused by the use of spare parts from other manufacturers or spare parts that are not intended or suitable for SR SUNTOUR suspension forks
14. oooocooosocososoooosoooooooooosocoooooooooooooooosoooooocoooooooooooooooooooooooooosooooooooooo Maintenance of the fork 13 Maintenance plan 13 Limited warranty 14 cecooocococooooooooooosocososooooooooococosooooooooooooococosooooooooooocososocooooooooocososooooooooooocososocooooooooocososooooooooooooooo IMPORTANT SAFETY INFORMATION WARNING Not heeding the warnings and safety instructions can cause the product to malfunction or can result in personal injuries or even death to the rider gt Please read these instructions thoroughly before using your suspension fork Improper use of the suspension fork can cause the product to become damaged or result in severe injuries or even death to the rider gt Suspension forks and rear shock absorbers contain highly pressurised liquids and gases The warnings contained in this manual must be followed carefully in order to prevent injuries or even death Never attempt to open SR SUNTOUR cartridges and rear shocks they contain highly pres surised liquids and gases as mentioned above You will risk severe injuries if you open SR SUNTOUR absorber cartridges and rear shock absorbers gt Use only original spare parts from SR SUNTOUR Using accessories and spare parts of other manufacturers voids the warranty of your fork and the fork may not work as intended Furthermore this can lead to accidents injuries and even injuries resulting in death SR SUNTOUR suspension forks are made for
15. quick release is not opened completely then this can cause the fork to become bent broken or otherwise structur ally damaged when the bicycle is removed from the bicycle rack If the bicycle has fallen off the bicycle rack have it inspected by a qualified bicycle mechanic before riding it again If you are using a bicycle rack that fastens the bicycle at the front dropouts only then the rear wheel must be fastened too Improperly fastening the bicycle can cause it to wiggle which may cause the fork dropouts to break gt Please note that SR SUNTOUR suspension forks are not equipped with front reflectors for use in road traffic If you intend to use your bicycle on public roads or bicycle paths you must install the required front reflectors on the fork Please contact your specialised dealer gt Carefully read the operating instructions included with your bicycle and familiarise yourself with the individual components of your bicycle Please also note that your fork is not intended for jumps aggressive down hill rides freeride or dirtjump if the warning sticker on your suspension fork prohibits these Disregarding these instructions may cause your product to fail or may even cause accidents or death Not heeding these instructions will void the warranty BEFORE EVERY RIDE Do not ride the bicycle if one of the following criteria is not met If the bicycle is damaged or if the necessary adjustments were not made but the bicycle is
16. quipped with air suspension 2 Press the fork together all the way 3 Measure the distance between the top of your tyre and the underside of the fork crown The distance must not be less than 10 mm If the tyre is too big it will touch the underside of the crown when the fork is fully pressed down 4 Relieve the fork and pump it up again if it is an air fork 5 Take into account that the gap is reduced if you are using a fender Repeat the tyre distance test to ensure that the distance is big enough You must repeat this test every time you change your tyres to another size Q LOC ASSEMBLY INSTRUCTIONS REMOVAL check the flange to be expanded before installation and open the lever completely slide in axle until it clicks Set the tension with a semi open lever until the flange is flush with the dropout Lock the lever completely Check if firmly seat ed and re tighten if necessary Open completely Press nut until flange retracts Turn nut 9 gt clockwise until flange stays latched Pull out axle 20 MM CROSS AXLE ASSEMBLY yY N Slide in the axle on the quick lock side Tighten the axle with the red lever It is now possible to slide the lever into the axle Lock the quick release Set the tensioning force with a 4 mm Allen wrench if needed the lever should be flush to the bottom case AIR PRESSURE AND SAG The SAG negative spring
17. requency Turn the adjusting screw counter clockwise less damping to increase the compression speed of your fork Turn it clockwise more damping to reduce the compression speed TRAVEL ADJUST FUNCTION This function allows you to continuously reduce the suspension travel of the fork by up to 40 mm In this version the valve cap is located at the bottom end of the bottom case Reduce travel Extend travel 1 Press and hold the button 1 Press and hold the button 2 Compress the fork 2 Relieve the fork N 3 Release the button Me MAINTENANCE OFTHE FORK SR SUNTOUR forks are designed to be almost maintenance free But because the moving parts are exposed to moisture and dirt the performance of your fork may decrease after a number of rides To ensure high performance safety and a long service life regular maintenance and care of the fork is required gt Please remember that the warranty is void if the fork is not cared for according to the mainte nance instructions gt Do not use high pressure cleaning equipment or other cleaning procedures that use highly pres surised water to clean the fork because water could potentially get past the dust seals and into the fork gt We recommend that you service the fork more frequently than listed in the table below if the bicycle is used in extreme weather e g winter or extreme terrain gt If you believe that the performance of your fork has changed or if it feels
18. stroke is the compression that is caused solely by the body weight and the position of the rider The SAG depends on the position and weight of the rider and should be between 15 and 30 of the fork s max travel depending on the intended use and preferences NCX series SETTING THE AIR PRESSURE AND SAG 1 Unscrew the valve cap Screw a fork shock pump onto the valve 2 Pump the suspension fork up to the desired pressure Never exceed the recommended maximum air pressure Note the table below 3 Sit on the bicycle in normal riding position and check the SAG Add or release air as needed In order to properly assess the SAG attach a cable zip tie to the fork stanchion You can lean against a wall in order to be able to sit still on the bicycle in order to measure the SAG ADJUSTABLE AIR CHAMBER VOLUME through spacer The RUX RC2 has an air chamber with adjustable volume This function allows the rider to choose between a more lin ear or a More progressive characteristic curve It can be adjusted in five stages with spacers The more spacers are installed the more progressive the characteris tic curve The spacers can be pushed out and reinserted without tools WARNING The air chamber is pressurised Before opening let the air out of the fork completely to prevent the valve and the spacer unit from being ejected forcefully and potentially causing injuries COIL SPRING PRELOAD Th
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