Kreitler Flywheel Right Side works with 4.5" rollers

For those who want the absolute closest road feel available indoors, the Kreitler Flywheel may be used alone or in conjunction with the Killer KOOL Headwind Fan to provide the ultimate workout. Left Side and Right Side versions are available for the Flywheel. There is no difference in performance whether you choose the Left or Right Flywheel. It is a matter of personal preference. Some people like to use 2 flywheels, so we offer both a Left and Right option. The Flywheel works with the Standard Frame o