The Omnium Trainer features an automatic resistance increase (IPR) that provides an authentic road feel and operates almost silently. The rollers are gentle on the tires, eliminating the need for a wheel change before a race. The resistance increases progressively, and the magnetic resistance unit is infinitely adjustable. The trainer comes fully assembled and is easy to fold up. Weighing only 6.2 kg, this roller trainer is easy to transport (a carrying bag is included). When folded, it measures just 66 x 18 x 20 cm. It is compatible with quick-release and thru-axles from 12-15 mm. The magnetic resistance unit is infinitely adjustable. The wheelbase and fork height can be adjusted for different bikes (Road, MTB). Size: 26" - 29".