The CycleOps Fluid Turbo Trainer is there to help you train at home; no matter the season, schedule or time of day. This Turbo Trainer features fluid progressive resistance that matches your effort whilst hardly making a sound, no adjustments needed. Plus, the CycleOps Fluid Turbo Trainer comes with a durable, foldable and eye-catching yellow trainer frame. Cycleops are committed to helping bicyclists of all types get on their bikes and ride. Want to train with Zwift or Rouvy? All you need is the included speed sensor.  CycleOps Fluid Turbo Trainer Features Includes Speed Sensor.  Fluid resistance unit provides a quiet and consistent ride. Progressive resistance offers the widest resistance range and road-like feel. 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 and 29 wheel sizes – up to a 2.0 tire. This trainer is designed to fit common road and mountain bike frames with included steel quick release skewer and is compatible with rear dropout spacing: 120mm, 130mm and 135mm. Trainer tyre recommended. Compatible with virtual training apps. All of our trainers are tested to the combined weight (rider and bike) of 300 lbs. Trainer skewer included. Noise level at 20 mph is 68-72 decibels.