Item Descriptions:
-Suitable for converting 100/142MM open gear to 110/148MM in the gasket.
-5x15x21mm/3x12x18.9mm size design, please check carefully.
-Improve the stability of the wheel hub support and ensure riding safety and handling performance.
-No additional weight is added and no impact on riding efficiency.
-4-piece package to meet multi-wheel installation or backup needs.

Package:
4Pcs Bike Hub Conversion Spacers Gasket

Item Specifications:
Size:5x15x21mm/3x12x18.9mm
Color:Black/Red
Quantity:4x