The Mavic E-Crosstrail SL 27. 5 wheel builds its Infinity hub specifically to handle the constant torque and power delivery of an E-bike motor, not just pedal input. The reinforced hub body holds tension without flexing under sustained load, so power reaches the tire consistently through repeated climbs. That reinforcement pairs with the wheel's 27. 5-inch diameter, which changes direction quicker than a larger wheel and snaps through tight switchbacks and technical singletrack with less effort. What Our Gearhead(R) Experts Are Saying:"I've run this wheel through a season of tight, root-choked singletrack where the trail never lets you settle into a rhythm, and the quicker steering makes those direction changes feel effortless. It hasn't gone out of true despite the motor putting steady power through it the whole ride."