GUSTAVO 135 140 152 160MM Childrens Bicycle Crank For Direct Mount Crank Bicycle Crankset Cycling Parts

GUSTAVO 135 140 152 160MM Children's Bicycle Crank For Direct Mount Crank Bicycle Crankset Cycling PartsSpecifications:Brand name :GUSTAVOMaterial :6061 aluminum alloyModel :GT-K1Crank length :135/140/152/160mmInstallation type : 3 screwDirect installationAxle diameter :24mmShaft material: chrome molybdenum steelCrank screw specification :m18Pedal screw specification :m13chain ringTooth number :26T,28T,30T,32TWeight: 41g, 55g, 62g, 65gColor: BlackSurface treatment: anodizedSupport speed :7s-12sSpecifications 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 shaftPackage: 1pcs crank or crank +BB Or Separate Chain ring choose