Boost Hub Bike Hub Conversion Spacers Gasket 2Pcs Bicycle 18.9*3mm/21*5mm
£8.72
Applicable: 5MM is suitable for hub 100MM to be converted to 110MM, 3MM is suitable for hub 142MM to be converted to 148MM. Process: Full CNC machining, fine turning, smooth and burr-free. Size: 18.9mm 3mm/21mm 5mm (Approx.).
