ultralight children's bicycle crank
110/127/140/150/155/160mm length hollow one-piece bicycle crank
Sprocket with protectors 28T 30T 32T 34T 36T
Material :6061 aluminum alloy
Model :GOLDIX-RD
Crank length :110/127/140/150/155/160mm
Installation type :GXPDirect installation
Chain link :28T 30T 32T 34T 36T
Axle diameter :24mm
Shaft material: chrome molybdenum steel
Crank screw specification :m18
Surface treatment: anodized
Pedal :m13
Support speed :7s-10s
Compatible with :SHIMANOSRAM, SENSAH, LTWOO, Microshift
Specifications of lower bracket:
BB68 M68-73(standard), suitable for the frame bottom bracket width 68mm-73mm.
Thread specification :BC1.37*24T, outer diameter 34mm, suitable for 24mm shaft