New Specialites Chinook 22T inner chainring for 9 or 10 speed 4-arm bolt holes distance 64 BCD these chainrings are a perfect with fit to Campagnolo, Shimano, FSA, Miche or numerous other chainsets. This is a Specialites TA Chinook 9-10 speed inner chainring for a bicycle crankset. Material: Crafted from high-quality 7075 T6 aluminum alloy. Compatibility: Designed for 9-10 speed drivetrains and fits cranksets with a 64mm Bolt Circle Diameter (BCD). Teeth: It has 22 teeth (22T). Origin: Made in France. Chainring is without original packaging, see photos of the actual chainring the buyer will receive for a full visual description.