Minoura  Riser Block Trainer
Train in an ergonomically correct position with the Minoura riser block. Stationary bike trainers have to lift the rear wheel to help it spin, which puts the rider at a tilted-downward angle. This forces the rider to apply unnecessary force to the handlebar to support his or her upper body. The plastic riser block responds by putting the front wheel at the same level as the rear wheel. The position is not only more comfortable, but it also makes training more effective. The riser block includes a wide and shallow groove for mountain bike tires and a narrow, deep groove for 700c road bike tires.