Elite Supercrono Forte Wireless Electro-magnetic resistance unit has 16 levels that can be controlled remotely via the included ANT+ wireless computer and can be set for constant power, constant level or a custom program Computer displays current, average and maximum speed, power, cadence, time, distance and heart rate (with the purchase of an ANT+ telemetry strap) Elastogel roller reduces noise by 50% and tire wear by 20% Quick thread hub clamp and spring-loaded resistance mechanism ensure quick, proper setup Extra wide, stable steel frame folds flat for storage or transport and fits wheels from 24" to 28" (700c road)