Robust, disc brake compatible, threaded for a freewheel, solid aluminum axle with eccentric stainless steel axle ends and hardware, 6902-2rs bearings, weighing 276 grams without bolt assembly. Chain tensioning is achieved by rotating the hub up and back towards the rear of the bike. A special adaptor is made for specific braking systems. The eccentric adaptor allows the brake caliper to rotate in the same arc as the brake rotor keeping the rotor and caliper in alignment. The Eccentric brake adapter, (or caliper mount), is not included with this hub. It's sold separately for $59.95 and can be found under disc brakes category
Material 6061 aluminum shell Axle ends Stainless steel Bearings 6902-2rs x 2 Spacing 135mm Spoke hole configurations 32h, and 36h Freewheel Compatible with English threaded freewheels 1.37 x 24 tpi. Chainline 47.5mm Disc rotor ISO 6 bolt compatible Fixing bolts M 8 1.25 x 20 socket cap stainless steel Eccentric caliper mount The eccentric mount will adjust and to follow the arc of the disc rotor on the eccentric hub when the chain is tensioned. The mount is designed to work with Hayes or Shimano mount disc brakes with removable frame mounting adaptor. Please be aware that it is an adaptor and this modification will not work with all bicycles or with all disc brakes Center to Flange 32.5mm Flange diameter 60.5mm Weight 308 grams w/o bolt-on hardware Made in the USA