The Cycleops Basic Mag Yellow Turbo Trainer is part of the Cyclopes no frills classic range of trainers. The Cycleops Mag Yellow trainer gives you the essentials you need to try out indoor training anywhere you want. The Mag Yellow Trainer comes with five adjustable levels of resistance so you can adapt every ride to your liking, simply set your level & go. The Cyclops Mag Yellow Trainer will work with all common adult bike wheel sizes & with most road & mountain bike frames that use a quick release axle. Thru axle adaptors are available separately. Although the Mag Trainer is not a ‘smart trainer’ you can hook it up to virtual training software like Zwift using the Cycleops Speed Sensor (sold separately). This will allow you to send data to programs like Zwift but not to get feedback in return. Features Linear resistance boosts workout intensity to match each pedal stroke & gear click. Eccentric leveling feet allow for easy adjustment on uneven surfaces. Comes on a sturdy, foldable yellow frame. Adjust tire fit to resistant unit with a convenient turn knob. Resistance unit roller allows for 700c, 26", 27" & 29" wheel sizes – up to a 2.0 tire. This trainer is designed to fit common road & mountain bike frames with included steel quick release skewer & is compatible with rear dropout spacing: 120mm, 130mm & 135mm. Tested to the combined weight (rider & bike) of 300 lbs. Trainer skewer included. Optional thru-axle adapter available Noise level at 20 mph is 72-76 decibels.