KMC chainring / sprocket for Bosch.
Fits Bosch Active Line Gen2 (MY 2014-2017) and Performance Line (CX) with hub gears.
Not for Active Line Gen3 from model year 2018 and Active Line Plus.
Available with 18, 19, 20 and 21 teeth.
A larger sprocket can reduce the cadence at higher speeds. It can therefore be quite useful to install with the tuning also a larger chainring.
Note that for the installation of an ISIS crank puller and a locking ring tool are required. Both you can purchase from us.
Chain: 1/2" x 1/8