Kinetic Rock and Roll 2.0 Trainer Train like the pros Made using the highest quality components The most trusted name in cycle trainers In addition to a superior ride, the Rock and Roll also provides the benefit of cycling-specific core training By forcing the rider to maintain form on the bike, the Rock and Roll forces riders to stabilize themselves by using their core muscles A stable core will help eliminate unnecessary upper-body movement, so that energy is used efficiently and is key to riding a bike well It will also stabilize the pelvis, gives the riders' legs a solid fulcrum to act against, efficiently transferring power to the pedals