The bicycle crankset chainring screw washers are perfect for those who want to convert their bike's single chainring setup to a double chainring configuration. These washers provide the necessary spacing to ensure that both chainrings are properly aligned and securely attached to the crankset. Their construction ensures performance, making them ideal for use in both mountain biking and road cycling applications. Features -Color:Silver -Material:Aluminium -Size:1.30X1.30X0.20cm/0.51X0.51X0.08in -Effortless upgrade: convert your bike's crankset from a single to a double chainring with ease using these screw washers, enhancing your riding performance -Stable attachment: these screw washers provide a stable attachment for the chainring, preventing it from loosening and ensuring -Enhanced riding efficiency: designed to facilitate smoother rides, these screw washers help improve riding efficiency -Versatile application: these screw washers are suitable for a wide range of bicycle models, catering to various cycling needs - reliability: built to withstand prolonged use, these screw washers offer durability, ensuring they remain reliable over time Package list: 10 x bicycle washers