Mountain Bikers have muscles and muscles have fibers. Fibers help react to changes in terrain on the trail. The more fibers are used the faster on trail reaction times you have, but you have to train to access these fibers. Intermediate riders use about 30% of available fibers while professionals use about 70%. That's where the Balance Trainer comes in - as you rock back and hold that balance position, your muscles are training to tap into fibers on the upper and lower back thighs hamstrings. Over time, you actually train your body to tap into muscle memory to be able to react accordingly without even have to think about it. To make these even better, the Balance Trainer doubles as a service standard and is a wall mounted bike rack.