Minoura RDA 850 Trainer

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• Rim Drive system is developed and patented exclusively by Minoura. This can eliminates all problems found on the stationary bike trainers such as noise and vibration caused by the uneven tire tread pattern and premature tire wear due to the roller contact at all time. The rollers on the rim drive system don't touch the tire at all so you don't need to worry about the tire wear, especially when warming up before the race.
• Each roller pulley contains a high-grade sealed bearing for smooth spin. The rubber roller is made of the material as same as for the brake show so your rim won't be damaged at all. Engaging/releasing operation is done by a plastic lever quickly.
• Rim drive system doesn't contact the tire directly at all, so you are completely free from the worries about premature tire wear, vibration and noise. Also rim drive system can be used with wide variaty of bikes with the wheels between 24" and 27"/700c without instaling adaptor.