The Profile Elite Rear Male Cassette Hub is a high spec, lightweight hub that's built to the highest possible standards. It's hand made in the USA with a 6061-T6 aluminium shell paired with a 14mm gun drilled hollow chromoly axle for maximum strength and durability. The Elite cassette features Profile's Ultra driver which includes six pawls and springs creating 204 points of engagement which means instant engagement and a really loud buzz! The hub spins on over-sized abec 5 bearings for less resistance and the heat treated colour matched cone spacers and an engraved Profile logos finish off the hub. please note: Sold standard with a 14mm Hollow Male Axle (You can Upgrade to Titanium at Checkout) Drivers from 9t through to 18t! - Select your drive side and Colour and then select your driver option at checkout. Titanium Upgrades also available. ###section### Product Specs HUB TYPE: Cassette AXLE: 14mm Male DRIVER: Choose In Basket DRIVE SIDE: Left Side Drive SPOKE HOLES: 36h WEIGHT: 509g (1.12lbs) Colour: Matt Black, Black, White, Purple, Green, Blue, Gold, Polished, Red; Size: LHD