CycleOps Mag+ Trainer w/Adjuster Trainer offers convenient, stable way to keep legs in riding shape during the offseason by turning your road bike into an indoor stationary bike Unique design incorporates flywheel for remarkably smooth, quiet operation five setting adjustments offer workout variety Comes equipped with bar-mounted remote shifter that allows you to adjust resistance while you train Limited manufacturer's warranties of the life of the product on frame, three years on resistance units, and one year on electronic components