DT Swiss 350 Hybrid MTB Rear Hub Engineered for What e MTBs Actually Demande MTB riders put more torque through their drivetrain than any standard MTB, and a conventional hub wasn't designed for that. The 350 Hybrid addresses those loads directly with a redesigned hub shell built around larger flanges and oversized spoke holes sized for 2. 34mm spokes, giving the wheel greater resistance to the acceleration and braking forces a motor-assisted system generates. The hardened steel freehub body takes over where aluminum would eventually give way, keeping the cassette interface intact through thousands of high-torque load cycles. Proven Ratchet System internals with 24-tooth engagement handle the rest. This is the hub to spec when you're building a wheelset that needs to go the distance on an e MTB. Features Axle standard available in 12x148mm Boost Thru-Axle and 12x157mm Super Boost+ to fit current e MTB frames Freehub standard available in SRAM XD (fits SRAM Eagle cassettes) and Shimano Micro Spline (fits Shimano 12-speed MTB cassettes) depending on variant Hardened steel freehub body resists cassette dig-in under the high torque loads generated by motor-assisted drivetrains Ratchet System with 24T engagement proven full-face ratchet internals sized and tuned specifically for e MTB durability Oversized hub flanges with 2. 34mm spoke compatibility increases lateral and torsional wheel stiffness to handle higher e MTB loads Brake interface available in Center Lock or IS 6-bolt to match your rotor and frame spec Specifications Position Rear Axle Standard12x148mm Boost Thru-Axle / 12x157mm Super Boost+ (variant dependent)Freehub Standard SRAM XD / Shimano Micro Spline (variant dependent)Spoke Count32H / 36H (variant dependent)Engagement Ratchet System 24TBearing Type Sealed Cartridge Shell Material Weight From 176g Intended Use E-Bike | Dt Swiss | 350 Hybrid Mtb Rear Hub 12X148Mm, 32H, Centerlock, Hg11 Mtb, 24T