the elite qubo digital smart b+ home trainer 2016 frame qubo provides greater stability and a more realistic feel of the road conditions, as weight and power, thanks to its chrono. magnetic roller wireless with electronic resistance adjustable and elastogel roller, with a wide range of resistance managed electronically. features: -adapts to the diameter between 20 and 29 ” wheels. -blocking fast fixing system. -elastogel roller: reduces wear 20% and noise by 50%. -transmisio´n wireless ant + and bluetooth smart. -compatible with bkool, trinerroad, zwift and kinomap includes: -the app my-training and six months of free license.