BOTTOM BRACKET 127 мм BB-UN300
CHAlNRlNG FC-M 771-K 26т SlLVER
CHAlNRlNG FC-M361 48т BLAcK
Bottom Bracket BB-RS500 Italy
Shimano E-Bike chainring Steps E7000 34t
SunRace FCM500 3x7/8s crankset 170 mm 24-34-42t