Oversized Pulley Wheel System for sram eTap



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Oversized Pulley Wheel 

System for SRAM eTap

Mounting &

Maintenance




Congratulations with your new 

CeramicSpeed Oversized Pulley 

Wheel System for SRAM eTap

Personally, I want to thank you for joining the growing number 

of CeramicSpeed users worldwide. The Oversized Pulley 

Wheel System you have bought is developed and handmade 

in Denmark and contains the unique CeramicSpeed Balls and 

components, carefully chosen from high quality suppliers.

Our aim, as the world’s best performing ceramic bearings and 

optimised racing chains manufacturer, is to deliver products that 

contribute to your performance as a rider. We are confident that 

you will love your new purchase. 

To ensure the best lifetime and performance, it is important 

that your new Oversized Pulley Wheel System is mounted and 

maintained correctly. Familiarise yourself with the technical 

information supplied in this brochure. Should you have any  

concerns or issues, please contact your local dealer or the  

technical department at CeramicSpeed, at any time.

Happy and safe riding, and once again welcome to CeramicSpeed.

Best regards,



CeramicSpeed

Martin Banke

Managing Director

Part of the Victory




Mounting Manual

Tools required

A. Chain Tool

B. Allen key (2.5 mm)

C. Small flat screwdriver

D.  Torx T6 screwdriver (Note that this is supplied in the product package)

For the installation of your new  

CeramicSpeed Oversized Pulley 

Wheel System for SRAM eTap 

(henceforth referred to as OSPW 

System) you will need the 

following tools:

5

4

6



3

8

A



B

C

D



9

9

Pos. Description 

 Pulley wheel bolts 



 Tower bolts  

 Back cage plate 



 Upper pulley 

 Lower pulley 



 Cage pivot 

 Rotation stop screw 



 Front cage plate 

 Pulley wheel lubrication points   



      

7



To ensure the very best in riding performance it is vital that  

your new OSPW System is mounted correctly. Follow these 

instructions to install your OSPW System for SRAM eTap:

1.

  Begin with your bike mounted in a stand. 

Shift to the lowest (smallest) cog and 

remove the rear wheel. Shift the derailleur 

to the largest (most open) gear setting for 

easier access.



3.

  Carefully rotate the derailleur hanger 

counter clockwise (adding spring tension) 

to access the pulley cage rotation stop 

screw. Using a 2.5 mm Allen key carefully 

remove this screw and set aside. Slowly 

allow the cage to unwind the spring 

tension until the cage is upside down and 

slightly forward. 

Mounting the CeramicSpeed Oversized 

Pulley Wheel System for SRAM eTap 

2.

  Using the proper chain tool, remove your

chain. When completing the installation 

of the OSPW System you will need to 

use a new, uncut chain. Note: it is not 

recommended to add links to a previously 

ridden chain.



6.

  The locking pin will slide straight out and 

free the cage pivot from the derailleur 

body. Once the pin is removed, carefully 

slide the pulley cage assembly away from 

the derailleur body. 



5.

  Behind the door you will now see the cage 

locking pin. Hold the pulley cage assembly 

at the upper pulley (located at the cage 

pivot) and carefully extract the locking pin 

using a small flat screwdriver or pick. 



4.

  Rotate the entire derailleur body clockwise 

to view the bottom of the body. Locate the 

triangular door panel and remove the T6 

torx screw. Set aside, you will need the 

door and screw later. 



7.

  Prepare the new OSPW System by 

removing the rotation stop screw (7) with 

a 2.5 mm Allen key. Lightly grease the tip 

of the cage pivot (6) on the new OSPW 

System before installation.   




10.

  Hold the cage securely to the derailleur 

body and reinsert the locking pin to the 

derailleur body. It is easiest to do this if 

the derailleur is rotated upside-down to 

avoid the pin from falling out. The pin 

should fully seat into the derailleur and 

now hold the cage from falling outwards. 



9.

  Align the OSPW System in an upside-down 

manner at the back of the derailleur 

body. Once aligned, fully insert the OSPW 

mounting post - cage pivot (6) and tension 

spring - into the derailleur body and check 

for smooth movement. There should be no 

binding or forcing within or when rotating 

the system.

8.

  When installing the OSPW System, take 

note of which spring tension you wish to 

set: H (high), M (medium), or L (low).  

The L tension setting will reduce both 

chain tension and friction, but will also 

result in slightly compromised shifting 

performance. The H tension setting 

provides the best in shifting performance, 

yet it will increase friction performance 

slightly over the L and the M tension 

settings.



11.

  Locate and reinstall the triangular door 

and the small T6 screw. Be sure to align 

the screw properly and support the 

derailleur body with your hand while 

installing the screw.




13.

  Shift the derailleur to the smallest gear 

and reinstall the rear wheel. Starting 

in the ‘small-small’ gear combination, 

install a new full length chain and 

shorten until there is clearance between 

the bottom of the chain and the upper 

pulley wheel (4). Adjust the B-tension 

screw until there is a small clearance 

between the upper pulley wheel (4) and 

the smallest gear on the cassette.  

14.

  Now check the clearance on the upper 

portion of the cassette for both the 

B tension adjustment and the chain 

length. Running the longest chain that 

provides successful shifting will result 

in the lowest friction. Note that hanger 

alignment is crucial for gear shifting 

performance. We recommend that you 

use a derailleur hanger alignment gauge 

to secure the correct fitting of your 

OSPW System.



12.

  The OSPW cage will now appear to be 

facing fully forward. Rotate the cage 

counter clockwise to add spring tension 

and access the rotation stop screw 

mounting point. Hold the OSPW cage 

forward and install the rotation stop 

screw (7) with a 2.5 mm Allen key to 

0.3 Nm torque. Slowly release hand 

pressure from the OSPW System cage, 

allowing the cage to rotate back and 

rest on the rotation stop screw (7). 

B-tension 

screw



Maintenance

No set of rules can be made for how often your Oversized Pulley Wheels 

are to be maintained. Maintenance frequency depends on the weather 

conditions that you are riding in. 

A worn chain will increase the wear on the pulley wheels significantly, so 

make sure that you change your chain before it is completely worn out. 

Under normal conditions, we recommend that you maintain the Oversized 

Pulley Wheels when you have ridden under wet conditions, washed your 

bike or each time you lubricate the chain. For 

normal maintenance, add a drop of oil into the 

lubrication points (9) for optimal performance. 

You will find the lubrication points on the back 

cage plate (3). Make sure to position the OSPW 

System horizontally to ensure that the oil reaches 

the Oversized Pulley Wheel bearings.

We recommend the use of CeramicSpeed Oil on the OSPW System. This 

can be purchased from the CeramicSpeed dealers worldwide or from our 

webshop. Watch our maintenance video on ceramicspeed.com in the 

Techlab section.

 

When travelling, your OSPW System will not fit in the bike travelling bag. 

We recommend that you dismount the whole rear derailleur and pack it aside.

EXTENDED MAINTENANCE

Approximately once every half a year we recommend that you provide an extended 

maintenance. In this case, you should dismount the Oversized Pulley Wheels from 

the cage, remove the seals from both sides and clean all parts in a shaker with 

degreaser. After cleaning, dry the components off, put two drops of oil onto the 

CeramicSpeed Balls, place the seals back on and remount the Oversized Pulley 

Wheels. When dismounting the cage plates, you will need a 2.5 mm Allen Key for 

the pulley wheel bolts (1) and a 2 mm Allen key for the tower bolts (2). To remount 

the screws, tighten the pulley wheel screws up to a max torque of 1 Nm and the 

tower bolts up to 0.3 Nm. For this, a torque tool is recommended. If you’re riding in 

wet and muddy conditions, we recommend you to provide an extended maintenance 

more frequently and replace oil with All Round Grease for a better protection. 




Up to 6 years warranty

Thankfully, we do not have to deal with our warranty too often. 

Nevertheless, we are happy to introduce you to our  

comprehensive warranty program.



Standard products 4 years

Bottom Brackets

Pulley Wheels

Wheel Kits

Headsets

Oversized Pulley Wheel Systems

Single Bearings

Coated products 6 years

Bottom Brackets

Pulley Wheels

Wheel Kits

Headsets

Oversized Pulley Wheel Systems

Single Bearings

We are committed to manufacturing and delivering the 

best ceramic bearing products in the industry. Should your 

CeramicSpeed product not live up to your expectations, and 

this is caused by defects in materials and/or workmanship, we 

encourage you to contact us. 

Register your product within the first 30 days of purchase on 

ceramicspeed.com/sport under the section Warranty. Should you 

thereafter, and within the warranty period need to file a claim, 

please return to the same section on our website and fill in your 

claim. We will always strive to revert to you concerning your 

claim within 24 hours.




sport@ceramicspeed.com - ceramicspeed.com

Benefit from other products 

in the CeramicSpeed family

A broad range of CeramicSpeed products is available for  

you to upgrade your bike. Apart from the OSPW Systems you 

can upgrade with CeramicSpeed Bottom Brackets, Wheel 

Kits, Pulley Wheels and UFO Racing Chains, available for most 

standards and brands on the market. You have also the chance 

to upgrade with Headsets. 

CeramicSpeed manufactures the cycling industry’s leading, 

most sought-after ceramic bearings and optimised chains.  

Delivering exceptional performance, our OSPW System 

provides you with increased energy savings, smooth drivetrain 

performance and unmatched lifetime. 

It is proven that CeramicSpeed Bearings installed in the bottom 

bracket, wheels and pulley wheels can save a rider between 

6-9 watts. On top of that, thanks to the CeramicSpeed UFO 

Racing Chains we deliver an additional energy saving between  

2-5 watts. The new OSPW Systems add a saving of minimum 

1.6 watts (SRAM) and minimum 2.4 watts (Shimano) to boost 

your performance and round up the total savings to 10-16 

watts. Many of the fastest World Tour riders 

and international triathletes choose to ride 

CeramicSpeed – simply because 

it makes a difference.

 Verfügbar in Deutsch auf:

 Accessibles en français sur:

  Disponible en español  

a continuación en  

nuestro sitio web:



ceramicspeed.com/sport/techlab

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