7075/T6 aluminum, CNC machined ramps and stainless steel pins offering quick, accurate shifts. 4 bolt mid/outer 104mm 44T.

7075/T6 aluminum, CNC machined ramps and stainless steel pins offering quick, accurate shifts. 4 bolt inner 64mm 22T.

FSA has designed lightweight Torx chainring bolts to improve head durability and strength. Torx wrench included. Black or silver anodized finish.

Long lasting 7075 alloy single speed cog fits Shimano™ cassette body. An offset thickness increase from the teeth to the spline keeps the cog from damaging alloy cassette bodies and provides the option to run the cog in either direction for improved chainline. Uses Sram PC-1 single speed chain. Available in 17, 18, 19, 20, 21 or 22 tooth. Selection may be limited.