Note: This universal design will fit the majority of hubs on the market, but there may be some exceptions. To be 100% sure on compatibility, ECLAT recommends customers consult their local bike shop or mail-order before purchase. Specs Material4140 Chromoly full heat treated Colorsraw FeaturesCrmo material is thin enough to fit over existing hardware and fit the majority of hubs on the market/ universal design/  super tough and durable heat treated 4140 crmo, slides better than alloy hub guards Weight76g (2.7oz/ 0.17lbs)