The small sprocket for cyc x1 pro motor
This little sprocket is located on the right side of the motor (underneath the front cover) and drives the golden drive chain.
There are 2 different sprockets (select above):
- 11T (11 teeth): for use with 11/53T and 11/63T chainrings
- 12T (12 teeth): for use with 12/72T chainrings (X1 Pro Gen1 + 2)