This MTB chainring is precisely cnc machined from 7075 / T6 aluminium. It is featuring a Megatooth profile (narrow-wide) to provide maximum chain retention for 1x10/11-speed drivetrains. 104 mm, 4-arm BCD.
Outer chainring by FSA for SL-K Modular 2-speed cranks! With 96 mm 4 arm BCD, optimized for Shimano 10/11-speed drivetrains. Made of precision CNC machined 7075 aluminium equipped with pins and ramps