Kurt Kinetic Trainers Pro Flywheel

If you're really serious about your trainer sessions, check out Kurt Kinetic's Pro Flywheel. It attaches quickly and easily to your Road Machine or Rock and Roll flywheel (sold separately) for a total of 18 pounds. It takes your Kurt Kinetic trainer's already stellar real-road feel and ups the realism, which is a must for hard-core endurance workouts, like tempo and long distance rides. You'll also experience longer wind-ups when doing sprint intervals and a longer coast-downs.