The Profile Mini Female Rear Cassette Hub is hand made in the USA and set the benchmark for cassette hubs since its release

FRAME MATERIAL: lightweight hydroformed 6061 T6 alloy

Due to the additional depth of the oval shape it also makes it more resistant to flat spots from heavy landings than a traditional rim

25) V-brake boss mounts and weigh just 11g/0

Marmost version: Fits G-sport Marmoset front hub

Fly Tractor XL2 Sprocket Size:25T The Profile Mini Female RearFly's Tractor Sprocket has seen many changes over the years with the Tractor XL2 being the latest result of their improvements and refinements. CNC machined from 6061 aluminium with a very unique and extremely strong tapered design, that starts at 12mm at the core tapering down to 6mm at the teeth. The Tractor XL2 features a recess for your crank arm creating an even more secure fit. The Fly Tractor XL2 Sprocket can be run on 19mm, 22mm and 24mm