DT Swiss 240 Hybrid MTB Rear Hub240 Performance. e MTB Proof. Riders who put serious mileage on an e MTB need a rear hub that keeps up with the combined torque of legs and motor. The 240 Hybrid is the top-tier hub in the DT Swiss e MTB line, and it earns that position through specific engineering decisions rather than just a badge. The Ratchet EXP OS freehub system runs a 30-tooth ratchet and an oversized M32 threaded ring that spreads load across a larger contact surface than the standard Ratchet EXP - a direct answer to the higher torque demands of motorized trail riding. The drive-side bearing is upsized, the flanges are enlarged, and the spoke holes are bored out for 2. 34mm spokes to handle the acceleration and braking forces an e MTB generates on every descent and every motor-assisted punch out of a corner. The hardened steel freehub body holds up where an aluminum body would show wear early. Features12x148mm Boost Thru-Axle fits current Boost-standard e MTB frames, the dominant rear axle standard on trail and enduro e MTBs from 2016 onward Ratchet EXP OS with 30-tooth ratchet oversized variant of the Ratchet EXP system, engineered to handle the combined torque of rider and motor with a larger M32 threaded ring that distributes load over more surface area than standard Ratchet EXPHardened steel freehub body resists cassette imprint and interface wear under the elevated loads specific to e MTB use - a meaningful upgrade from conventional aluminum freehub bodies Enlarged hub flanges and 2. 34mm spoke holes redesigned shell accepts DT Swiss 2. 34mm spokes for greater resistance to acceleration and braking torques Upsized drive-side bearing larger bearing integrated into the Ratchet EXP OS handles higher radial and axial loads across longer e MTB rides32H spoke drilling matches standard 32-hole e MTB rims for a wide range of wheelbuilding options Specifications Position Rear Axle Standard12x148mm Boost Thru-Axle Freehub Standardmultiple freehub variants available - confirm at time of purchase)Spoke Count32HEngagement30T Ratchet EXP OS (engagement angle not confirmed)Bearing Type Sealed Cartridge Shell Material Weight Intended Use E-Bike (Trail, All-Mountain, Enduro) | Dt Swiss | 240 Hybrid Mtb Rear Hub 12X148Mm, 32H, Centerlock, Microspline, 30T