The clarks gear kit features sp4 type housing compatible with mtb hybrid and road systems the kit includes 11mm inner wires 2275mm 2 wire end covers 10 ferrules and 3 sets of 4mm o rings ad key features gear kit with sp4 type housing compatible with mtb hybrid and road systems 2500mm outcasing kit includes 11mm inner wires 2275mm 2 wire end covers 10 ferrules and 3 sets of 4mm o rings