cycleops-9902-mag-trainer-magnetic-resistance-adjustable
cycleops-9902-mag-trainer-magnetic-resistance-adjustable, CycleOps Mag Trainer features a 5-position adjustment that makes it easy to vary workouts.Magnetic resistance unit provides a quiet and frictionless rideLinear resistance boosts workout intensity to match each pedal stroke and gear clickNoise level at 20 mph is 70-74 decibelsRoller allows for 650b, 700c, 26", 27" and 29" wheel sizes - up to a 2.0 tireCompatible with quick release hubs; 120mm, 130mm and 135mm. Optional thru-axle adapter available for 142x12mm and 148x12mm