ZTTO Bicycle Rear Derailleur Ceramic bearing Pulley Jockey Wheel
All the results of the simulations and the experimentations indicated that the ceramic ball bearings` performances are very good, especially in the low load and high-speed environment.
Size:11T
Structure: Ceramic bearing
Material: aluminum alloy 7075
Color: Black Red Blue Silver Gold
Weight: about 7.8g
Fit for 4/5/6 MM roller screw axis
Apply for most of rear derailleur on the market
ZTTO CERAMIC PULLEY
Suitable for all cycling applications, whether it is road, MTB, or triathlon, these pulley wheels will optimize your speed rear derailleur with reduced friction and extended lifetime. Being the fastest spinning bearings on your bike, an upgrade with our high-performance pulley wheels are an effective way to save energy or ride faster.