The CycleOps Classic Supermagneto Trainer is a progressive magnetic resistance trainer that provides a quiet and frictionless ride. This trainer is super versatile in the fact that it can take four different types of ride, easy, road, interval and mountain. This can help you in a hard training session, a cool warm down or a pre race warm-up. The trainer has a large fly wheel which re-creates and incredible road like feel. To achieve the most efficient traction on the trainer there is a clutch knob which allows you to position your tyre at the perfect tire tension to ride at. The 2” resistance unit roller accommodates wheel sizes from 26” to 29” wheels and will cope with tire tread widths up to 2.25”. In comparison to other trainers the trainer is quiet, roughly 69 – 70 decibels at 20 mph. The precision-machined roller of the Supermagneto reduces tyre wear and slippage so you get longer lasting trainer tires and also direct power onto your roller without spinning or slipping out.