The Profile Mini Female Rear Cassette Hub is hand made in the USA, a hub that set the benchmark for Cassette hubs when it was first released. Refined over the years the hub features a heat treated 6061 aluminium Shell which houses a heat treated Aluminium internal axle and precision sealed bearings. The hub uses the bullet proof Profile driver with 4 pawls and bearings for super smooth engagement and a loud click. Please note: This is the female axle version, available with a huge choice of 14mm female bolts or 10mm bolts with drivers from 9t through to 18t. Select your drive side and colour and then select your driver option and bolts at the checkout. Titanium upgrades also available. ###section### Product Specs HUB TYPE: Cassette AXLE: Female Bolts DRIVER: Choose In Basket DRIVE SIDE: Left Side Drive SPOKE HOLES: 36h WEIGHT: 372g (0.82lbs) Colour: Aqua, Polished, Red, Blue, Gold, Matt Black, Green, Purple, White, Black; Size: LHD