Type:Bicycle Chainwheel
Use:Kids' Bikes
Material:Aluminum alloy
Origin:Mainland China
length :130mm*34T 150mm*30T
Axle diameter :24mm
Shaft material: chrome molybdenum steel
Crank screw specification :m15
Surface treatment: anodized
Pedal :m14
Support speed :7s-12s
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
