CHAIN WHEEL

ZP-A61-A1-45T-A
CRANK 曲柄 A60-170mm
(Alloy Forged 6061-T6)
CHAIN RING 链轮 45T(alloy)
CHAINGUARD 链罩 45T(alloy)
SPIDER 爪 BCD 130mm
CHAINLINE 链线 45mm
COMPATIBIL ITY 变速兼容 1*11S
B.B.T 中轴