BOX Two Prime 9 Cassette - 9-Speed 11-50t Black Lumens-50 Wolfram-Carbide reinforced

Wolfram-Carbide reinforced

Front hub: Shimano XT HB-M8110-B Boost

Pulse Ox and more (this is not a medical device

Classic Murex design with a 22

Pressure Relief Valves eliminate unwanted air pressure build up in the lower leg caused by variations in altitude or temperature

BOX Two Prime 9 Cassette - 9-Speed 11-50t Black Lumens-50 Wolfram-Carbide reinforcedThe BOX Two Prime 9 Cassette delivers long service life and extra range. All cogs are stamped from steel and the larger ones are pinned to alloy spiders. Cogs pinned to lightweight spiders Ultra wide ratio with consistent progression Prime 9 technology Compatible with HG freehub bodies Range 11 50 Cogs 11 13 15 18 22 28 34 42 50 Cassette Body Type Shimano HG Drivetrain Speeds 9 Color Black Defined Color Black