5 resistance levels adjustable by a practical selector on the handlebar Novo frame: integration of steel and technological plastic materials Maximum stability at high speeds or at maximum effort guaranteed by the absorbing structure of the frame Fast fixing system: the bicycle can be clamped and released with a single quick operation New adjustable support system, allowing an adequate and constant pressure between the roller and tire 30 mm diameter elastogel roller The training roller folds up easily and becomes compact for easy transport or storage when not in use