Sun Ringle Bubba Rear MTB Hub BOOST

. Made for mastering everything the mountain has to offer, this excellent adjustable rear hub by Sun Ringle ensures a smooth spin and superb support, however hard you ride. Featuring an innovative Clock'D 6 Pawl engagement system, the Bubba uses two separate ratchet rings to set differing levels of engagement three pawls every four degrees for all mountain riding and six pawls every eight degrees for exhilarating enduro runs. Innovative and Adjustable Rear MTB Hub . Coming Boost sized for superior stiffness and control when taking on the most demanding runs, this hero of a hub gives a friction free performance thanks to its quartet of sealed cartridge bearings. Aluminium made for a durable and dependable showing ride after ride, the Bubba is a brilliant addition to your venturesome MTB's back end. Features Shell Material 6061 Aluminium Axle Material 7075 Aluminium Use Enduro, Trail, E MTB Bearings 4x sealed cartridge Axle Spacing 12x148mm Boost Freehub 7075 Aluminium Shimano HG or SRAM XD Freehub System Clock'D 6 Pawl 4 degree or 8 degree adjustable Disc Brake Standard 6 BoltBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.