Ketjuratas KMC E-bike Shimano taka musta 1/8". 20T.

High quality KMC e-Bike sprocket for e-bikes.
Shimano system
20-tooth rear
sprocket Chain size 1/2" x 1/8"
Color: black
Material: Durable Cr-Mo
10,000 km warranty:
when you use KMC's e101EPT chain, this rear sprocket and front chain,
all of which are promised this warranty.