Finally an option to customise the gearing of your Bosch powered eBike.?These sprockets are available for the Bosch Active / Performance Line / CX Motor Drive Units. These sprockets are made out of a special Carburized Steel, so should last longer than most standard sprockets.
We offer these Bosch sprockets in 14, 17, 20 tooth sizes!
As a general reference, if you increase sprocket size the cadence will become slower (harder to pedal / faster). By decreasing sprocket size the cadence will become higher (easier to pedal / lighter for hill climbing). Generally most eMTB’s come as standard with 14-18t sprockets and road / trekking bikes come as standard with 16-20t.
You will also require the Bosch Active / Performance Lock ring tool & the Bosch crank puller to remove the existing sprocket or we can do it for you.
It’s always advisable to use new sprockets with a new chain when replacing. The old chain could slip over the new sprocket