Using the same proven narrow flange spacing as our famous Dynamic front hub

that starts at 12mm at the core tapering down to 6mm at the teeth

Replacement 9t driver for the Cinema ZX Cassette Hub

with chromoly 3-piece cranks reliably throwing down power

includes thread-on brake pivots

Federal Impact Guard Sprocket Colour:Black Using the same proven narrowThe Federal Impact Guard Sprocket is designed to keep your sprocket and chain protected when you're hitting ledges. The Impact Guard is made from the same tried and tested tough nylon blend as Federal's hubguards, offering a lighter alternative to alloy guard sprockets and allows the guard to be replaced when it's suffered excessive damage. CNC machined from 6mm thick 6061 aluminium the actual sprocket is a solid design that's tough, durable and