OD/1973 - OD/1974 SUPERTURISMO Flat steering wheel, 3 black anodized spokes without central hole for horn button. 2 red buttons on horizontal spokes controlling two separate switches (for example one for the horn and the other for high-beams). Diameter: 320mm Handgrip: Oval 35x24 mm OD/1973/N Black in suede leather OD/1974/NN Black in smooth leather