E*Thirteen Sidekick Rear Hub The Main Character Whether you're cruising the mountain trails or descending the gnarliest singletrack, your hubs will keep you rolling. With an excellent set of hubs on your bike, you'll roll faster and farther with less effort. The Sidekick rear hub features a unique anti-kickback drive mechanism with an adjustable deadband, providing smooth suspension performance, reduced fatigue, and near-silent operation for an unparalleled riding experience. Its groundbreaking freehub mechanism disengages the drivetrain from the rear wheel when coasting, and an adjustable deadband filter kickback and chain vibration before it reaches the pedals, virtually eliminating pedal feedback effects on suspension. With the drive mechanism disengaged from the ratchet ring, drag is significantly reduced. The result is an impeccably smooth ride over the roughest terrain, improved traction, heightened speed and control, and reduced fatigue. Its nearly silent operation immerses you in the outdoor experience, letting you hear nothing but the wind in your ears and your tires on the trail. Features Designed to enhance the suspension performance of any full-suspension mountain bike Adjustable pawl-pusher allows for tool-free tuning of deadband between 12deg, 15deg, and 18deg to suit rider preference, bike type, and terrain Chain tension filtered by the deadband ensures suspension is unhindered by resistance from pedal kick-back, resulting in improved, more consistent performance, and simpler setup SPECIFICATIONSHub Size12x148mm, 12x157mm Spoke Interface J-Bend Hub Drilling32HBrake Type6-Bolt Cassette Compatibility SRAM XD, Shimano Micro Spline, Hyper Glide | E. thirteen | Sidekick Rear Hub 32H 148X12 Boost Ms