Rotor Round Chainring 55T Bcd144X5 1/8" Black bicycle pump Lens Color: Photocromic Silver

Lens Color: Photocromic Silver

a technical adaptation of Bernoulli’s principle is applied to HJC’s aerodynamically enhanced models

Mount : Direct Attachment (Conventional)

Sleek compact form factor easily fits in jersey pockets and bags for on the go convenience

Rotor Round Chainring 55T Bcd144X5 1/8" Black bicycle pump Lens Color: Photocromic SilverFeatures High performance round chainring built for track and fixed gear setups. Precision machined BCD 144x5 for a perfect chainline. 1 8" thickness suitable for single speed chains. Sturdy and lightweight with a black anodized surface. Specifications Teeth: 55T BCD: 144x5 Chain Width: 1 8" Color: Black