Bicycle Rear Derailleur Ceramic Bike Jockey 17TH Oversized Guide Pulley Wheel for 11S 12Speed Shimano R9100 R9150 8000 8050 8150

Description

Derailleur Pulley

17TH Carbon Fiber Cage Ceramic Bearing Bicycle Rear Derailleur Pulley Fit for Shimano 9100/9150/R8000/R8050
1.Carbon fiber frame
2.Ceramic bearing
3.Lighter weight
4.CNC process
Product analysis
Product analysis

1.Full 7075 aluminum alloy material
2.Ceramic bearing
3.KACTUS tech Logo
4.Carbon fiber cage
5.Titanium alloy shaft
6.Full 7075 aluminum alloy material
Product description

THE 1st ADVANTAGE: Compared with the original one-time riveting design, KACTUS TECH coaxial swing cage system adopts an excellent aluminum alloy single bolt fixing method, Lighter weight and more convenient for end-users.
THE 2nd ADVANTAGE: The titanium alloy shaft is fixed to the aluminum alloy base. It can evenly distributing the force to the entire carbon fiber plate. will save 45 frictional resistance compared to original 11T pulley.
THE 3rd ADVANTAGE: If you buy the ceramic bearing version, it can save save 2.2 watts on average each pedaling, shifting speed increased by 20-26
Carbon fiber bracket

Carbon fiber is a new type of fiber material with high strength and high modulus fiber with a carbon content of more than 95 Carbon fiber is flexible on the outside and rigid on the inside. Its mass is lighter than that of metal aluminum, but its strength is higher than that of steel. It also has the characteristics of corrosion resistance and good stability.
CNC Machining Process

Full 7075 aluminum alloy CNC cutting lightweight guide wheel ,Heat treated CNC process Guaranteed strength Lightweight at the same time,The surface anodizing treatment enhances the hardness and wear resistance of the aluminum alloy surface, and prolongs the service life of the product.
Lighter weight

Carbon fiber cage, aluminum alloy guide wheel, Carbon fiber cage combined with aluminum alloy guide wheel makes the entire product only about 53 grams,perfect lightweight design.
Ceramic Bearing

If you buy the ceramic bearing version, it can save save 2.4 watts on average each pedaling, shifting speed increased by 20-26.

NOTICE:Bearings have 3 specifications Ceramic bearing version Ceramic Bead Bearing Version NSK Steel Bearing Version, this description focuses on ceramic bearings, you can choose according to your needs

1.Full 7075 aluminum alloy material
2.G3 Silicon Nitride Ceramic Beads
3.Ceramic Zirconia
Multi-color options

A variety of colors are available, you can choose the color you like according to your needs, there is always one that suits you.
Product physical photos

The product is taken in kind and displayed from multiple angles, showing you more different product scenarios
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.
Product installation process

1. First,find the screw of pulley wheel cage in the back of rear derailleur.
2. Remove the screw with T10 screwdriver.

3. Pull out the screw.
4. Remove and grease the screw and spring before assembly the new 12-17T carbon cage.

5. We suggest fix the spring in this hole
6. Grease the titanium axle before assemble new cage.

7.Push the spring in the hole.
8. Clockwise rotate the cage and push into rear derailleur. Push all when make sure the positi-oning post right in the position.

9. Push back the screw in the hole and fix with T10 screwdrive.