Note: This hub guard will fit only the 2017 (and onwards) Seismic, Pulse, Dynamic and Cortex rear hubs, and will not fit earlier models unless the updated cone nut has also been purchased. Specs Materialnylon-fibreglass compound ColorsBlack Features• low friction nylon material• threadless, slides smoothly onto existing cone• fits on CORTEX (EVO) FC and CS hubs, SEISMIC and SHIFT hubs Measurements:23 x 75mm Weight39g (1.4oz : 0.08lbs)