blackdog, I WOULD if our wheels were suited to them. For the Speedy, yes, the alloy rims should be fine, but I don't think the results would be worth it for the America, due to the need for an inner tube (don't know if you'd get the same profile with a Radial and inner tube as just a radial on an alloy rim) I know the Thruxton has radials, but not sure if it has inner tubes or has tubless rims like BMW uses.
