KMC Sprocket R SHIMANO Narrow, 21T

KMC Sprocket for SHIMANO Narrow 21T E-Bike

Hardened chrome-molybdenum steel
For Shimano
Maximum performance that saves battery life
Perfectly matched to KMC chains
Recommended chain: e1EPT

Item no.: BSRS5021
Size: 1/2 X 3/32
Color: Black

3500km+:

It lasts. And it lasts.

The 3500 HP+ drivetrain is the perfect solution for demanding drivers. The combination of our e1 EPT chain and narrow sprockets ensures a guaranteed mileage of 3500 kilometers and more.