DT Swiss 1.5 142 mm Flat Thru Axles
About DT Swiss - Driven by the vision of becoming a worldwide known manufacturer of bicycle components, DT Swiss expanded its product range over the years. Today DT Swiss has established itself as a leading manufacturer of spokes, nipples, hubs, rims, complete wheels as well as suspension systems.
The inside-to-inside measurement of your fork or frame at the dropouts.
Usually flat or conical. This is the shape of the washer and should match your frame or fork.