All of their rear hubs utilize the patented RingDrive engagement mechanism. RingDrive uses 72 engagement teeth on each drive ring. That means the hub engages over 3 times quicker than the standard 24 tooth pawl-type freehub. Trying to get started again in the middle of a steep uphill section? Going for the surprise jump to drop your buddies? This unique design offers instant and positive engagement that's capable of handling a torque load of over 800ft-lbs, or over three times more than most other high end hubs tested. It is the heart of our hub and all rest is built around it
Other unique features include an ultra stiff 19.5mm constant diameter axle (through the bearings to the dropouts), time tested and proven bearings, and a 5 year warranty. All of our hubs are easily adjustable and simple to work on, requiring only two hex wrenches and a pen knife for regular maintenance. 7075 aluminum free hub body, with three sealed cartridge bearings and one needle bearing. Features micro engagement. 7/8/9 speed compatible. 28, 32, or 36 hole drilling. Alloy Cassette body 130mm rear spacing. Colors: Black, Pewter, Blue, Green, Gold, Silver, Red, Mango.