Giant Cyclotron Mag & Auto Trainer Wheel Coupling Knob
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Progressive magnetic resistance automatically gives a wide range of resistance from easy spins to burning climbs with no remote adjuster
100% aluminum gray anodized I–Beam frame is stellar looking and rust–resistant
Non–skid rubber adjustable leveling feet
Precision–turned 2" aluminum roller and 1500g (3.3lbs) flywheel are mounted to a stiff, die–cast aluminum carrier for smooth pedaling action
Tough steel replacement quick-release skewer included
Accommodates most wheel/tire sizes 29", 27", 700C, and 26"