Hope RS Mono/Pro 2 Evo 11-speed Freehub Body, 40t only 11-Speed Road Compatible, compatible with 10-speed Mountainoad with spacer Compatible only with Hope Pro 2 Evo hubs with 40T Drive rings - identifiable by the Hub Shell saying "Pro 2 Evo 40T". Cassette Body Type: Shimano/SRAM 11 Speed Road Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed Replacement Freehub bodies for the Hope Pro 2 Evo hubs with 40T driverings.