The Extralite HyperRear hub is one of the lightest disc hubs ever at 168g. The Hyper Rear hub features a foreword engagment cassette driver that can withstand over a half-ton of chain pull. The front and rear hubs come in at an astonishing 246g, of which the rear is 163 grams, allowing for an exceptionally light wheelset. However, nothing about this hub is micro. The rear hub uses 2- 6803 and 2- 6903 RS bearing, and a 17mm axle. The hub body is 7075TX aluminum, anodized black, with laser etched graphics. The hub flanges utilize a straight pull spoke system to reduce lateral flex and increase torque transmission.
Due to the lightweight construction of Extralite hubs, it is recommended that service be performed at frequent intervals to ensure proper function and the longest possible wear life of the internal components. Detailed service instructions can be found here. We recommend Slick Honey for proper and effective lubrication of the seals and freehub mechanism.
|Weight Shimano||168 grams|
|Weight Sram XD||163 grams|
|Bearing Sizes||6803x2, 6903x2|
|Available Spoke Drillings||28, 32|