The Feedback sports RAKK bike holder display system is designed as a quality custom bicycle display rack for the retail floor, but is also excellent for the garage or apartment. The patented, spring-loaded arm holds bike by the tire. It easily holds the front or rear wheel without the risk of scratching rim or spokes. Simply roll the bike into the wheel slot and the swing arm holds it steady. The wheel slot accommodates all types of bikes - road, mountain, cross, BMX and tandems. It holds 20 mm road tires up to 2.4" 29'r mountain tires.