e*thirteen Sidekick Pro SP Rear Hub - 6-Bolt - 12x148mm

The Sidekick Pro SP Anti-Kickback Rear MTB Hub is the choice for trail, all-mountain, and lightweight E-MTB riders building the lightest, stiffest wheel possible without giving up anti-kickback performance. At 275g, it is the lightest hub in the Sidekick lineup: straight-pull spokes, full anti-kickback, and Pro-level upgraded internals in one package.

Straight-pull spokes eliminate the J-bend stress point at the flange and deliver a measurably stiffer, lighter wheel. Combined with the Sidekick platform's full drivetrain isolation near-zero drag, near-silent operation, and tool-free 9°/13°/18° deadband adjustment the Pro SP is the build choice for riders who want every possible performance advantage from their hub, without sacrificing on weight. At 9°, engagement is fast and direct, comparable to a conventional hub, ideal when climbing is the priority. Open it up to 13° or 18° for maximum anti-kickback and suspension performance on descents.

Internally, the Pro SP runs EZO driver bearings, TPX hub shell bearings, and nickel-plated steel pawls and pusher. Same World Cup-validated mechanism, tuned for maximum longevity.

• 275g the lightest hub in the Sidekick lineup; straight-pull spokes, Boost 148mm
• Eliminate pedal kickback full drivetrain isolation during coasting
• Near-zero freewheeling drag at least 55% less than competing hubs in controlled tests
• Near-silent operation hear your tires and terrain, not your hub
• Tool-free deadband adjustment 9° / 13° / 18°; narrowest setting delivers quick engagement for climbing, wider settings maximize anti-kickback performance
• EZO + TPX bearings, nickel-plated pawls and pusher
• XD and Microspline driver compatibility Boost 148mm axle, HG driver available for purchase separately
• 6-Bolt disc mount, 28h straight-pull spoke configuration
• 17mm alloy axle, ASTM 5 rated at 150kg
• E-MTB compatible
• 10-year warranty with lifetime bearing coverage, fully rebuildable, designed for extended service