Model year 2014 USER MANUAL
Contents
1. After each ride Every 5 rides twice a year once a year IMPORTANT The oil service and full service must be performed by a BOS approved center The BOS approved centers are the only able to identify and appraise a damaged or worn parts especially in case of shock or wear on structural elements such as the legs the stanchions and the crowns 3 3 Changing oil An oil change with the Idylle fork consists in changing the oil bath in each leg Keep highly attention about the correct oil level in both leg cartridge and spring follow the datas mentionned below in the table CAUTION To get the correct oil level in the cartridge side you must bleed the air while you are pouring the oil Once there is no air remaining in the cartridge you can adjust the level referring to the table below IMPORTANT This is strongly recommended to use BOS B i oil oil otherwise it could significantly alter the behaviour of the fork and reduce the life of the wear parts How to measure the oil level in the cartridge side Push down the stanchion Pull out the rebound rod Measure the distance between the top of the stanchion and the oil Oil level IDYLLE Rare IDYLLE Air IDYLLE Damping side right 110mm 185mm 190mm Spring side left 10ml 10ml 140ml What initial settings for the fork The Idylle Chart list is available on the download section of the bosmtb com website The Idylle Chart li2. DYLLE comes with 2 hydraulics adjustments compression and rebound The compression adjustment seats at the bottom of the right hand leg flat head screw 1 The rebound adjustment is on the top of the right hand stanchion the non disc side 2 Always start from fully tighten position then tighten down counting the clicks to adjust your settings Tighten anticlockwise close harden Undo clockwise open soften Tuning tips When it comes down to hydraulic setting there is no such thing as a magical formula many factors have to be taken into account bike balance spring rate geometry of the bike Having said that you can draw conclusions from what follows Excessive diving of the bike upon braking harden the compression Often bottom out harden the compression Feeling harsh on roots or square edges soften the compression Uncomfortable arms pain soften the rebound The forks don t spring back and stay low after succession of bumps soften the rebound Front too high in dynamic situation harden the rebound Whenever you are far from the standard settings factory settings It s always better to consider what influences the performance of the forks Proceed step by step one setting at a time by hardening or softening few click each time If you ever get lost while you are setting up the forks always go back to its original settings Starting point adjustments IDYLLE Air Recrea
3. ESS OC Co 5m SUWSFrKRe2e gt i 1 LOIYLLE Model year 2014 USER MANUAL WARRANTY Terms and conditions BOS MTB offers warranty on its products on the following terms BOS MTB guarantees the original purchaser that the BOS product for which they received this warranty is free from defects in material and workmanship for one year from the date of original retail purchase A proof of purchase will be asked for any warranty claim This warranty is not transferable to a subsequent purchaser Wear and tear parts such as dust seals Oring bushings rear shock mouting hardwares stanchions threaded parts and bolts are not covered under this warranty Terms This warranty is subject to legal jurisdictional or warranty rights of the country where it has been originally purchased which will prevail if different from the terms herein listed Limits BOS MTB cannot be liable for any loss inconvenience damages whether direct incidental consequential resulting from the use of its products local legislation prevailing Warranty exclusions This warranty does not cover the following cases e Damage to products resulting from improper assembly other than listed below e Products that have been modified by the owner or a third party e Improper use e Damages resulting from an accident crash under any circumstances e Invalid servicing procedures and servicing time frame not respecte
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5. Tuning tips When it comes down to hydraulic setting there is no such thing as a magical formula many factors have to be taken into account bike balance spring rate geometry of the bike Having said that you can draw conclusions from what follows Excessive diving of the bike upon braking harden the LS compression Often bottom out harden the HS compression Feeling harsh on roots or square edges soften HS compression Uncomfortable arms pain soften rebound The forks don t spring back and stay low after succession of bumps soften rebound Front too high in dynamic situation harden the rebound Whenever you are far from the standard settings factory settings It s always better to consider what influences the performance of the forks Proceed step by step one setting at a time by hardening or softening few click each time If you ever get lost while you are setting up the forks always go back to its original settings Starting point adjustments IDYLLE Rare Recretional use Low speed compression 15 clicks from the fully tighten position High speed compression 18 clicks from the fully tighten position Rebound 18 clicks from the fully tighten position Racing use Low speed compression 10 clicks from the fully tighten position High speed compression 20 clicks from the fully tighten position Rebound 16 clicks from the fully tighten position IDYLLE Air amp IDYLLE IDYLLE Air and I
6. d e Replacement of the original parts by parts from others manufacturers e Products whose serial numbers has been altered defaced or removed Warranty procedure The owner should always refer to an approved BOS center for any warranty claim A proof a purchase is compulsory for any warranty claim Otherwise the warranty claim will not be considered Always contact BOS MTB warranty department before returning any products that may fall under this warranty If the faulty parts do not fall under warranty the customer will be charged for any costs in respect with warranty such as transport and package back and forth SETTINGS amp MAINTENANCE 1 ASSEMBLY Fitting your Idylle onto your bike demands care and attention For your safety please do respect the following instructions 1 1 The steerer tube Before cutting the steerer tube first you have to take some measurements Height of the headset length of the headtube of the frame height of the stem and then add 5 to 10mm With a standard stem clamped on the steerer tube Add the length of the headtube of the frame to the height of the headset and to height of the headset plus 5 to 10mm With a stem bolted onto the upper crown Add the length of the headtube of the frame to the height of the headset plus 5 to 10mm CAUTION Never attempt to remove or replace the steerer or upper tubes independently from the crown Modifying the integrated crown steerer or upper tub
7. e axle and using a 6 mm hex key wrench turn clockwise and lightly tighten the axle to the lower leg Tighten the two left side caliper side dropout pinch bolts to 3N m torque Compress the fork on the bike a couple of times to let the right side of the dropout float and settle to its low friction point Tighten the two right side dropout pinch bolts 3N m torque AONA DO 1 4 Disc brake installation The Idylle disc bolt pattern uses caliper mount for post mount 160 PM160 To assemble the disc brakes check the following procedure 1 Install the DH disc brake system according to disc brake manufacturer s specifications 2 Be sure to torque all fasteners and bolts to manufacturer s recommendations Consult the instructions that came with your disc brakes for proper installation procedures It is recommended to install a NEW disc brake pads to ensure proper alignment and to minimize drag 3 Route the disc brake hose for hydraulic disc brakes or brake cable housing for mechanical disc brakes from the caliper to the inside of the lower leg and through the supplied disc brake hose guide 4 Tighten the disc brake hose guide screw M3 x 12 with a 2 5 mm hex key wrench and torque it to 1N m 5 Test the brakes for proper operation on level ground before hitting the trails The disc brake caliper mounting bolts must have 10 mm of thread engagement with the fork In any case the disc brake caliper mounting bolt tightening torque level
8. es can cause an assembly failure resulting in a loss of control of the bicycle and serious injury 1 2 Stanchions and crowns Depending on the bike the position of the stanchions in the crowns may slightly differ Nevertheless it is actually very important to follow all the measurement advices listed below to ensure a perfect function and a total security When installing the wheel with a properly inflated tyre make sure that the forks achieve minimum tyre clearance Simply measure the distance from the top of the leg lower part of the seal to the outer of the lower B crown it has to be between 210mm to 220mm A sibel IMPORTANT Mavs clin This distance is for tyres of a maximum diameter of 705mm The distance between the top of the upper tubes and the top of the upper crown must be included between Omm and 30mm Once the forks assembled to the measurements listed above you can then tighten but always refer to the recommended tightening torque Tightening torque for all bolts of the upper and lower crown 4 to 5 N m MIN 210mm MAX 220mm 1 3 Installing the front wheel To assemble the front wheel check the following procedure Loosen the four axle pinch bolts on the lower leg with a 5 mm hex key wrench Using a 6 mm hex key wrench turn the axle counter clockwise to loosen and remove Install the front wheel into the dropouts and install the axle into the lower leg Put a small amount of grease on the thread of th
9. he sag recommendations turn the preload knob clockwise with a 14mm wrench Measure sag again and repeat adjustment if necessary If the preload adjustment is greater than 20 clics you need to install a coil spring with a stronger rate Changing the coil spring ALD DE D N a With a 32 mm 6 point socket wrench loosen and remove the preload top cap top of left leg pictures 1 amp 2 Remove the black spring guide picture 3 Compress the fork slightly and remove the coil spring picture 4 Wipe the spring dry with a rag and check the color code Install the new spring by dropping it into the upper tube Install the black spring guide then torque the top cap to 24 N m Measure and set sag Adjust the preload topcap adjustment if necessary 2 3 HYDRAULIC ADJUSTMENTS IDYLLE Rare IDYLLE Rare comes with 3 hydraulics adjustments low speed compression high speed compression and rebound The low speed compression adjustment seats at the bottom of the right hand leg using a flat head screwdriver 1 A The high speed compression adjustment seats at the bottom of the right hand leg using a 14mm 6 points socket wrench 1 B 1 B The rebound adjustment is on the top of the right hand tube using a flat screwdriver 2 Always start from fully tighten position then tighten down counting the clicks to adjust your settings 2 Tighten anticlockwise close harden Undo clockwise open soften
10. must never exceed 10N m 2 SETTINGS 2 1 Air pressure IDYLLE Rare and IDYLLE Air The sag measurement is the amount that your fork rear shock or both will compress when you are positioned for riding on your bike with all your riding apparel and gear Adjusting air pressure until you achieve your target sag will help you to determine the appropriate amount of air pressure for your fork or shock or both To achieve the best performance from your BOS suspension product the proper measuring and setting of sag is vitally important As a starting point set sag for your fork or rear shock according to the following instructions Recreational use weight kg Ibs 55 120 60 132 65 143 70 154 75 165 80 176 85 187 95 210 105 231 110 242 pressure psi 155 160 165 170 175 180 185 190 195 205 Racing use weight kg Ibs 55 120 60 132 65 143 70 154 75 165 80 176 85 187 95 210 105 231 110 242 pression psi 160 165 170 175 185 190 195 200 210 215 Minimum air pressure 155 psi Maximum air pressure 215 psi The Idylle have an o ring on the fork upper tube in order to measure the SAG position You can experiment and vary your sag percentage to better suit your riding style and overall feel 2 2 Coil spring IDYLLE To get the best performance from your Idylle fork it is necessary to set and occasionally preload the spring rate By default your forks c
11. ome with the orange spring within Two extra springs green and grey come in the box in order to adjust to most of the riders See the Idylle coil spring setting table below for reference You may need to install a coil spring having a different spring rate weight kg Ibs lt 60 kg de 60 a 80 kg de 80a 105 kg gt 105 kg lt 132 Ibs from 132 to 176 Ibs from 176 to 231 Ibs gt 131 Ibs spring green orange grey purple availibility extra origin extra option Spring Preload Generally sag should be set to 15 25 of total fork travel 30 to 50mm 1 The Idylle have an o ring on the fork upper tube in order to measure the SAG position Slide the o ring down against the scraper lip of the fork dust seal 2 Dressed to ride position your bike in dynamic situations going down the hill for instance Without bouncing mount your bicycle Assume a normal riding position for at least 30 seconds allowing the suspension to fully settle 3 Dismount your bike without bouncing downward without further moving the o ring Measure the distance between the seal and the o ring This measurement is your sag value 4 Compare your sag measurement value to the sag recommendations 30 to 50mm If your sag measurement value is less than the sag recommendations turn the preload knob counter clockwise with a 14mm wrench Measure sag again and repeat adjustment if necessary If your sag measurement value is greater than t
12. st summarizes the recommended settings clicks and air pressure depending on the body weight Refer also to chapter 2 of this manual for details There is an air leaking when I connect the high pressure pump what can I do Check with a Schrader valve tool if it is screwed correctly or check your pump At rest position the fork travel is slightly engaged small SAG is this normal The BOS air spring system is designed to offer the lowest threshold of release Some forks may come with a slightly negative travel Where can I get the original stickers or valve cap Those items are available on the online store on bosmtb com Or contact our sales department for informations commercial bosmtb com The fork comes with a slightly play on stanchions area what can I do The unique alignment of the bushings of the BOS forks creates an induced slight frontal play If the play is abnormally high please contact BOS approved center for expertise The fork retracts when I deflate the air chamber what s happening Deflating the fork means removing the air from the positive chamber only The remaining air on the negative air chamber creates an opposite force to the main spring and retracts the fork To avoid this deflate step by step 30 40 psi and alternate with very slow oscillations 5 or 6 on the first 15 mm of travel to recover the full travel 4 Impasse l once Couture F 31200 Toulouse t 05 34 25 33 66 info bosmtb com Bo ae aR eE
13. tional use Compression 15 clicks from the fully tighten position Rebound 18 clicks from the fully tighten position Racing use Compression 8 clicks from the fully tighten position Rebound 16 clicks from the fully tighten position Starting point adjustments IDYLLE Compression 15 clicks from the fully tighten position Rebound 18 clicks from the fully tighten position 3 MAINTENANCE 3 1 Air bleeding Idylle is fitted with a bleeding screw on the top of the right stanchion Bleeding your forks on regular basis will reduce the pressurising effect that always happens with those forks We recommend to bleed your fork every 5 rides in racing use or every 10 rides in recreationnal use All you have to do is to undo the bleeding screw and put them back on no need to compress the forks 3 2 Cleaning your fork It is compulsory to clean your fork every time you use it without waiting Nothing s worse for your fork s seals than dry mud It is very simple to clean your fork wipe off the stanchion with a clean rag and then slightly lube the stanchion with silicon based product Using of degreaser is totally forbidden On the same note do not power wash the fork It will only push the mud inside the fork and get it stuck between the stanchion and the seals Cleaning Air bleeding Oil service full service Recreationnal use After each ride Every 10 rides once a year Every 2 years Racing use
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