Mountain Road Bicycle Power Assisted Wheel Hub Adapter Rear Wheel Hub 12x142 To148MM Front 15x100 To110MM Conversion Gasket Wash

Bike Boost Hub AdapterMaterial: Aluminum Alloy Size: 38.8mm5mm/3mm Color: Black/Red Application: Front Hub Of Barrel Shaft 100 To 11015mm 142 To 14812mm Rear Hub Of Barrel Shaft Net Weight: 28.1g/24.4g Gross Weight: 30.1g/26.4g Packing List: Hub Conversion Seat1 Washer2 Screw*6Features:Suitable for the front hub barrel shaft to open 100mm to 110mm, The rear hub barrel shaft 142 turns 148mm,In order to adapt to the corresponding disc brake disc position and the demand of opening gear,Solved the problem of compatibility between hub and front fork and frame