ultralight children's bicycle crank

110/127/140/150/155mm length hollow one-piece bicycle crank Sprocket with protectors

28T 30T 32T 34T 36T

Brand name :GOLDIX

Material :6061 aluminum alloy

Model :GOLDIX-RD

Crank length :110/127/140/150mm

Installation type :GXPDirect installation

Chain link :28T 30T 32T 34T 36T

Axle diameter :24mm

Shaft material: chrome molybdenum steel

Crank screw specification :m15

Surface treatment: anodized

Pedal :m14(9/16 inch)A client told me I needed to callout, so I did!

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