Hope Bottom Bracket For 30mm Spindle - 30mm - BSA Threaded - 68-73mm - Black - Stainless Bearings eBay They fit perfectly in the

They fit perfectly in the palm of the hand and provide tremendous leverage

For a full compatibility list see below

To determine which type of mount you need just think about what size post mounts your frame/fork has and how much larger the rotor is that you'd like to run

Cosmetically

Hope Bottom Bracket For 30mm Spindle - 30mm - BSA Threaded - 68-73mm - Black - Stainless Bearings eBay They fit perfectly in theFitted with only the best seals and bearings, Hope's threaded bottom brackets are renowned for their quality, durability and longevity. Specifications: External bottom bracket designed for threaded bottom brackets. CNC machined aluminium cups. Custom Swiss made stainless steel bearings are double sealed which gives a much greater life span than stock units. Cartridge bearings are replaceable. Compatibility: 41mm PF92 frames BSA 73mm or 68mm threaded