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SRAM Reverb Stealth Service manual

Manual is about: RockShox A2 & B1

Summary of Reverb Stealth

  • Page 1

    Reverb™ stealth a2 & b1 gen.0000000005341 rev a © 2017 sram, llc s e r v i c e m a n u a l.

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    Sram® llc warranty extent of limited warranty except as otherwise set forth herein, sram warrants its products to be free from defects in materials or workmanship for a period of two years after original purchase. This warranty only applies to the original owner and is not transferable. Claims under...

  • Page 3: Safety First!

    Safety first! We care about you. Please, always wear your safety glasses and protective gloves when servicing rockshox® products. Protect yourself! Wear your safety gear!.

  • Page 4: Table of Contents

    Table of contents product identification - reverb™ stealth ................................................................................................................................................................................6 recommended service intervals ....................................

  • Page 5

    5 rockshox® service r o c k s h o x ® s e r v i c e we recommend that you have your rockshox suspension serviced by a qualified bicycle mechanic. Servicing rockshox suspension requires knowledge of suspension components, as well as the use of specialized tools and lubricants/fluids. Failure to follo...

  • Page 6

    6 product identification - reverb™ stealth p r o d u c t i d e n t i f i c a t i o n - r e v e r b ™ s t e a l t h production versions of reverb stealth can be identified visually. Your reverb stealth can be identified by the color of the speed adjuster and graphic on the upper post. A2 - remote - b...

  • Page 7

    7 recommended service intervals r e c o m m e n d e d s e r v i c e i n t e r v a l s regular service is required to keep your rockshox® product working at peak performance. Follow this maintenance schedule and install the service parts included in each service kit that corresponds with the service ...

  • Page 8

    8 t o r q u e v a l u e s part tool torque poppet valve housing 11 mm open end wrench 5.7-7.9 n•m (50-70 in-lb) internal seal head 23 mm open end wrench 28 n•m (250 in-lb) poppet valve cover 10 mm open end wrench 5.7-7.9 n•m (50-70 in-lb) top cap assembly 34 mm open end wrench 27-29 n•m (238-256 in-...

  • Page 9

    9 parts, tools, and supplies p a r t s , t o o l s , a n d s u p p l i e s parts • reverb™ stealth b1 service kit - 200 hours • reverb stealth b1 service kit - 400 hours • reverb stealth a2 service kit - 200 hours • reverb brass keys, quantity 3 (use correct size) • reverb remote lever hose barb (op...

  • Page 10

    10 exploded view - assembly e x p l o d e d v i e w - a s s e m b l y retaining ring saddle clamp assembly air cap schrader valve air fill valve post head upper post brass keys (x3) ifp tube internal floating piston (ifp) poppet valve housing foam ring bottomout o-ring internal seal head inner shaft...

  • Page 11

    11 exploded view - component e x p l o d e d v i e w - c o m p o n e n t retaining ring a2 saddle clamp assembly air cap schrader valve air fill valve post head upper post brass keys (x3) ifp tube internal floating piston (ifp) b1 poppet valve housing foam ring bottomout o-ring internal seal head b1...

  • Page 12

    12 seatpost service s e a t p o s t s e r v i c e s e a t p o s t r e m o v a l secure the bicycle in an upright position. Notice the reverb™ stealth seatpost will be removed from the bicycle. Do not clamp the seatpost in a bicycle work stand. Raise the seatpost to the fully extended position. 1 2 s...

  • Page 13

    13 seatpost removal set the speed adjuster to the full slow position. Rotating the speed adjuster to the slowest setting is critical for a successful bleed. Failure to do so may result in insufficient fluid volume inside the hydraulic remote system. Standard remote: turn the speed adjuster knob in t...

  • Page 14

    14 seatpost removal record your saddle settings for reference when the saddle is installed back onto the seatpost. Remove the saddle clamps and saddle. Remove the air cap. Depress the schrader valve and release all air pressure from the air chamber. ⚠warning - eye hazard verify all pressure is remov...

  • Page 15

    15 seatpost removal loosen the seatpost collar. Remove the seatpost from the bicycle seat tube while simultaneously pushing the hydraulic hose into the hose port in the bicycle frame. The hose port location will vary depending on the bicycle frame. Consult with your frame manufacturer for additional...

  • Page 16

    16 hydraulic hose disconnect h y d r a u l i c h o s e d i s c o n n e c t reverb™ stealth is available with one of two hydraulic hose assembly types: 1) hose barb, and 2) connectamajig™. For connectamajig hose assemblies, either the connectamajig coupler can be removed from the seatpost, or the con...

  • Page 17

    17 lower post removal 5 0 / 2 0 0 / 4 0 0 h o u r s e r v i c e l o w e r p o s t r e m o v a l notice use bench vise soft jaw inserts to prevent damage to the seatpost or any seatpost component when clamping it into a vise. Clamp each component only tight enough to prevent it from spinning in the s...

  • Page 18

    18 lower post removal clamp the poppet housing wrench flats tightly in a vise with flat soft jaw inserts. Remove the lock ring from the poppet valve housing. A2: remove the lock ring o-ring. Clean the lock ring and o-ring. Apply grease to the o-ring and reinstall it. Remove the seatpost from the vis...

  • Page 19

    19 lower post removal a2: push the volume spacer from the lower post with a dowel. Clamp the upper post head into the vise with flat soft jaws. Remove the three brass keys from the upper post. On page 7 , record the number of lines, which indicate key size, marked on the brass keys for future refere...

  • Page 20

    20 top cap and seal head bushing replacement 2 0 0 ( b 1 ) h o u r s e r v i c e t o p c a p a n d s e a l h e a d b u s h i n g r e p l a c e m e n t the following steps are to be completed during the b1 200 hour service interval and include replacing parts included in the reverb™ stealth b1 servic...

  • Page 21

    21 top cap and seal head bushing replacement remove the top cap assembly from the upper post and discard it. Spray isopropyl alcohol onto the upper post and inner shaft assembly and wipe them with a clean shop towel. Apply a liberal amount of sram® butter grease around the inside of a new top cap as...

  • Page 22

    22 top cap and seal head bushing replacement install a new bottomout o-ring and foam washer over the poppet valve housing assembly and onto the inner shaft. Notice do not damage the foam washer during installation. To continue with the 200 (b1) hour service proceed to brass key installation . 8.

  • Page 23

    23 inner shaft disassembly 2 0 0 ( a 2 ) & 4 0 0 ( b 1 ) h o u r s e r v i c e i n n e r s h a f t d i s a s s e m b l y ⚠warning - eye hazard there may be remaining air pressure inside the upper post assembly. Keep your eyes and face away from the poppet valve housing during disassembly. Clamp the ...

  • Page 24

    24 inner shaft disassembly wrap a shop towel around the upper post below the seal head. Unthread the internal seal head three full turns. Do not remove the seal head. Wrap a shop towel around and over the internal seal head. Slowly unthread the seal head by hand while holding the shop towel over the...

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    25 inner shaft disassembly spray the inner shaft and rockshox® 3-hole vise blocks with isopropyl alcohol and wipe them with a clean shop towel. The clamping surfaces must be free of oil and grease. Clamp the inner shaft into the 10 mm slot in the rockshox 3-hole vise blocks. Unthread and remove the ...

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    26 upper post disassembly 2 0 0 ( a 2 ) & 4 0 0 ( b 1 ) h o u r s e r v i c e u p p e r p o s t d i s a s s e m b l y clamp the upper post head into the vise with flat soft jaws. Remove the top cap assembly from the upper post and discard the top cap assembly. Insert a 1.5 mm hex wrench into one of ...

  • Page 27

    27 upper post disassembly remove the internal floating piston (ifp) from the upper post. Insert seven to nine plastic cable ties (cable tie size may vary), one at a time, into the upper post and through the center of the ifp. Pull the cable ties out of the upper post and remove the ifp. Discard the ...

  • Page 28

    28 top cap installation 2 0 0 ( a 2 ) & 4 0 0 ( b 1 ) h o u r s e r v i c e t o p c a p i n s t a l l a t i o n apply a liberal amount of sram® butter grease around the inside of a new top cap assembly and onto the seals. Use isopropyl alcohol and a shop towel to clean the outside of the upper post....

  • Page 29

    29 internal floating piston (ifp) installation 200 (a2) & 400 (b1) hour s e r v i c e i n t e r n a l f l o a t i n g p i s t o n ( i f p ) i n s t a l l a t i o n fully coat the inside and outside surfaces of the ifp tube with reverb™ fluid. Install the ifp tube with the cross holes facing up, into...

  • Page 30

    30 internal floating piston (ifp) installation install the greased ifp into the upper post and onto the ifp tube. Push the ifp down until it is level with the top of the ifp tube. The ifp is symmetrical. Orientation of the ifp is not critical to installation. Set the internal floating piston (ifp) h...

  • Page 31

    31 inner shaft assembly 200 (a2) & 400 (b1) hour service i n n e r s h a f t a s s e m b l y notice inspect each part for scratches. Do not scratch any sealing surfaces when servicing your suspension. Scratches can cause leaks. When replacing seals and o-rings, use your fingers or a pick to remove t...

  • Page 32

    32 inner shaft assembly b1 (all sizes) and a2 (380 mm x 125 mm, 430 mm x 150 mm): install a new bottomout o-ring and a new foam ring onto the inner shaft. A2 (355 mm x 100 mm, 420 mm x 100 mm, 420 mm x 125 mm): apply sram® butter to the volume spacer o-ring. Install a new bottomout o-ring, the volum...

  • Page 33

    33 inner shaft installation 200 (a2) & 400 (b1) hour service i n n e r s h a f t i n s t a l l a t i o n clamp the upper post head back into the vise and flat soft jaws. Wrap a shop towel around the top of the upper post. Pour reverb™ hydraulic fluid into the ifp tube until the fluid overflows into ...

  • Page 34

    34 inner shaft installation tighten the seal head. Use a shop towel to wipe away any excess fluid. Notice do not scratch the inner shaft with the wrench as this is a critical sealing surface. Surface scratches can cause leaks and reduce performance. Do not compress the inner shaft into the upper pos...

  • Page 35

    35 poppet valve installation 200 (a2) & 400 (b1) hour service p o p p e t v a l v e i n s t a l l a t i o n a specific amount of reverb™ hydraulic fluid must be removed from the inner shaft before the poppet valve is installed. Consult the chart below and set the fluid level height for your reverb s...

  • Page 36

    36 poppet valve installation insert the poppet valve into the inner shaft, narrow end first. Hold the shaft in the extended position, push the poppet valve down into the poppet valve housing and inner shaft, and press it into place with your finger. Notice do not allow the shaft to compress during p...

  • Page 37

    37 lower post installation 5 0 / 2 0 0 / 4 0 0 h o u r s e r v i c e l o w e r p o s t i n s t a l l a t i o n apply a liberal amount of sram® butter grease onto the seal head bushing. Apply a liberal amount of sram butter grease to the inside of the lower post tube. Install the lower post onto the ...

  • Page 38

    38 brass key installation 5 0 / 2 0 0 / 4 0 0 h o u r s e r v i c e b r a s s k e y i n s t a l l a t i o n notice side-to-side movement of the upper tube is an indication that the brass keys are worn and need to be replaced. Vertical lines on the key are an indication that the key is worn. New bras...

  • Page 39

    39 brass key installation align the lower post key slots with the brass keys and ensure the laser etched rockshox® logo is aligned with the back of the seatpost head. Hold each brass key in place and slide the lower post down until it engages the keys. Continue to slide the lower post down over the ...

  • Page 40

    40 lock ring and retaining ring installation 5 0 / 2 0 0 / 4 0 0 h o u r s e r v i c e l o c k r i n g a n d r e t a i n i n g r i n g i n s t a l l a t i o n clamp the lower post back into the vise and park tool® av-5 vise inserts with the post head facing down. Push the upper post up to expose the...

  • Page 41

    41 pressurize seatpost 5 0 / 2 0 0 / 4 0 0 h o u r s e r v i c e p r e s s u r i z e s e a t p o s t clamp the seatpost back into the vise and park tool® av-5 vise inserts with the post head facing up. Pressurize the seatpost to 250 psi (17.2 bar). Reinstall the air cap hand tight. To continue with ...

  • Page 42

    42 remote lever r e m o t e l e v e r h o s e b a r b r e p l a c e m e n t ( o p t i o n a l ) replace the remote hose barb only if it is damaged from impact. If the hydraulic hose assembly is removed from the bicycle, refer to the 'reverb™ stealth and reverb hydraulic hose replacement and remote s...

  • Page 43

    43 hose barb replacement (optional) standard remote: unthread the barb from the remote and discard it. Install a new hose barb and tighten it. Proceed to step 8. Reverb™ 1x™ remote: remove the compression nut. Remove the hose barb and discard it. 3 6 mm standard remote 6 mm 2.9-3.5 n•m (25-30 in-lb)...

  • Page 44

    44 hose barb replacement (optional) reverb™ 1x™ remote: cut 3 - 4 mm off the end of the hose. Reverb 1x remote: insert the compression nut onto the hose. Thread a new hose barb into the hose until it stops. Notice do not over-tighten and strip the threads inside the hydraulic hose. If the hose is ov...

  • Page 45

    45 hose barb replacement (optional) reverb™ 1x™ remote: insert the hose barb into the remote and thread the compression nut onto the remote. Tighten to the correct torque. Standard remote: thread the remote lever hose barb into the hydraulic hose. Hold the end of the hose and rotate the remote lever...

  • Page 46

    46 hydraulic hose h y d r a u l i c h o s e 5 0 / 2 0 0 / 4 0 0 h o u r s e r v i c e c o n n e c t t o s e a t p o s t there are two reverb™ stealth hydraulic hose types: 1) hose barb, and 2) connectamajig™. Follow the procedure in step 2 for the hose type on your reverb stealth. Use wire cutters t...

  • Page 47

    47 connect to seatpost hose barb: thread the hose barb into the poppet valve cover. Use a 7 mm open end wrench to hold the hose barb in position and tighten the poppet valve cover. Connectamajig™ hose coupler (pictured in step 2): connect the hose coupler to the connectamajig coupler. Use your finge...

  • Page 48

    This publication includes trademarks and registered trademarks of the following companies: torx® is a registered trademark of acument intellectual properties, llc. Park tool® is a registered trademark of park tool co..

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    Asian headquarters sram taiwan no. 1598-8 chung shan road shen kang hsiang, taichung city taiwan r.O.C. World headquarters sram llc 1000 w. Fulton market, 4th floor chicago, illinois 60607 usa european headquarters sram europe paasbosweg 14-16 3862zs nijkerk the netherlands www.Sram.Com.