Adoolla 5-Piece Bicycle Flywheel Hub Spacers & Axle Washer Kit - Premium Bottom Bracket Gaskets for Smooth Bike Performance - Perfect for Mountain Bikes, Road Bikes & Cycling Maintenance

Description: Name: Bicycle Flywheel Washer Process: CNC+ surface anode Material: ultra-light aluminum alloy Inner diameter: about 35mm Outer diameter: about 42mm Thickness: 1/1.5/2/2.5/3mm Color: black/red Purpose: The gasket is used for fine adjustment of the bottom bracket/flywheel base. Packing list: 5pcs*Hub Spacers Note： 1.Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.

Common problem solving: can slov problems like the chainring hits the frame,the crank hits the frame,the front gear does not come down, etc. (washers need to be added at the bottom bracket)

Gap filling: The flywheel is installed too loosely, and there is a crack.you can use it to fill it

Modification: can be used for single-speed vehicles, such as 8-speed conversion to 7-speedetc. (washers need to be added at the hub)