* PowerTuned technology provides smooth, realistic accelerations and inertia* Cooler operating temperature delivers long-lasting performance and stable progressive power* Pro Series frame offers quick installation and removal of bike with ability to lock resistance unit in place for transport and storage* Lock ring for fast installation and removal of the bike frame* Quick Cam Lever for easy resistance unit attachment* Progressive resistance* Noise level: quietest* Limited lifetime warranty* Winter training kit includes: trainer, riser block, training mat and bike thong