Rockrider ST 540 S (2020) - Cross country (XC) bike
B'TWIN Rockrider 540s, full suspension electric mountain bike, fitted with a high performance Bafang BBSHD mid-drive electric motor with a 52v14ah... | By Ebike Choices | Facebook
Btwin Rockrider St 540 || Detailed Review || Off-road test || On YouTube - YouTube