Mseries is the lightduty magnetic tire drive trainer line mainly for daily exercise. M60D is the special model in the new Mseries with milder resistance power for beginners. New Mseries has the newly designed Ushape frame. It's made of 38mm diameter steel round tubing to be clean, simple, lightweight but enough durability to support the bike stiffly. M60D features a convenient quick release type hub clamping system that allows you to mountdismount the bike very quickly. Just pushing
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