Hooks up to just about any bike - including road and mountain bikes with a 26 inch to 28 inch, or 700cc wheel. The rad Pro zone Trainer by RAD Cycle Products offers seven levels of powerful magnetic resistance so simulate multiple road conditions. The rad Pro zone bike Trainer converts your bike into a dynamic indoor cycling Trainer. It utilizes a state of the art magnet system which provides progressive magnetic resistance increases as the speed increases. These are perfect for the beginner or the professional who wants to stay in shape all year long! this Mag Trainer is one of the quietest on the market - it is a premium quality unit. Now you can watch TV and ride your bike. Designed for bikes with quick Release rear axle. Train safely, away from high traffic areas year around. Engineered for fitness/endurance/indoor training. 7 powerful magnetic resistance levels simulate road conditions. Wide base design for extra stability and a smooth, quiet ride. Ez change resistance controller clamps to your handlebars. Customize your workout with resistance levels and gear changes. Train safely away from traffic areas year around. No-slip floor grip stabilizes front wheel. Quick Release for easy loading. Trainer folds for easy storage. Riser block included. Accommodates 26-28" and 700cc tires. Brand - RAD Cycle Products. 1100 Prozone Trainer - 1102 prozone bike Trainer. Shipping weight - 24. Item Dimensions - H 26" x L 20" x w 10.5".