Good Wholesale Vendors Bulldozer Undercarriage Front Idler - Manufacturer for Small Roller Wheel,Sliding Door Wheel,Nylon Cover Wheel With Bearing – Kactus Sports

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Bicycle Parts Bike Jockey Carbon Fiber Wheel 17TSE Bicycle Rear Derailleur Pulleys

Product description

*12/17T super large size guide wheel set system

*Saves 45% chain friction resistance compared to 11T guide wheels”

*Ceramic bearing version saves more than 2.2 watts of average power compared to the original transmission system

*Full carbon fiber cage

*Full 7075 aluminum alloy CNC cutting lightweight guide wheel and TC4 titanium alloy spindle

*17TSE is suitable for SRAM ETAP

*Ceramic bearing version Hybrid Ceramic Bearing Version NSK steel bearing version

*Weight: 63 grams

*The ceramic bearing version is 1.2 grams lighter than the steel bearing version

Product Information

Why replace derailleur pulley wheel

Firstly, porous spring position limit could adjust back tension largely, improve the weakness of original weak stretch, and make the up and down chain tension between guide wheel and cogs much more adequately.

Secondly, the contact tooth number or control tooth number between chain and cogs of rear derailleur 17T is more during gear shifting, it just like to pinch the middle and two sides of some sticks, the larger the control lever, the stronger the control power.

Lastly, after redesign the cage’s rotation curve, the distance between upper guide wheel and the cogs is improved.

Installation steps 

1. First, find the triangle cover in the back of etap rear derailleur

2. Remove the cover with 1.5mm hex wrench

3. Remove the cover

4. Find the steel part with a hole when remove the cover

5. Remove the steel part (CAUTION: When you remove the steel part is easy to spring out the whole pulley cage)

6. Remove the steel part you can see it is a micro fixed fork

7. Grease the titaniumaxle before assemblynew cage

8. Grease the spring before assembly new cage.

9. Find the hole that red arrow show in the picture and push Spring in

10. Clockwise rotate the cage and pushin to rear derailleur

11. Push all when make sure the positioning post right in the position

12. Reset the steel fixed fork in the triangle hole

13. Push the steel fixed fork right in the position

14. Reset the triangle cover

15. Fixed cover screw in 2N.m with 1.5mm hex wrench

16. Check out the cover is immoveable

17.Finish