Minoura: Compactly foldable into 3 design for easy storage and transport, rustproof and lightweight alloy construction, position adjustable rear roller allows using 24\"/650c bike. Compactly foldable into 3 design for easy storage and transportRustproof and lightweight alloy constructionRaised up mid frame works as foot step80mm diameter alloy roller drum generates natural resistancePainted finish for anti-slip and noise dumpingEach roller contains noise insulator for quiet trainingWheelbase adjustable from 950mm to 1090mmPosition adjustable rear roller allows using 24\"/650c bike