8/9/10/11 speed support, works for Shimano and for Sram. Compatible to 8-11s system.
Hybird ceramic bearings. Low friction and almost zero resistance. Make your riding easier. Offer smooth riding experience and low noisy.
Body aluminum and full CNC process, then anodized surface treatment. Lightweight 11g to 21g from 11T to 17T.
Odd tooth like 11T and 15T are ordinary tooth, even tooth like 12T and 16T are narrow wide tooth. It is the optimum choice and design.
1 Year Warranty.
Model：11T，12T，13T，14T，15T，16T，17T
Color：black side cover or red side cover
Package Content:
if buy 1pcs, it come with 1pcs pulley in package.
and with adapters for 4mm to 6mm, adapters for 5mm to 6mm, install bolts of 5mm.
(you have to use the adapter of 5mm to 6mm in 95% conditions).
