The horn shall not be unreasonably loud or harsh. Windshield or windscreen are not required, but if installed, they shall be free of cracks, discoloration or scratches which would create any vision obstruction and they shall have no sharp edges. Only approved plexi-glass is permitted. No sign, poster, decal, other non-transparent material or mounting hardware shall be allowed on a windshield or windscreen which would obstruct the vision of the operator. Only pneumatic rubber tires shall be permitted.
Tire is worn so that a tread wear indicator contacts the road surface in any two adjacent groves.
Tire tube, if known, has been patched. There is any combination of radial ply tire with non-radial tire, unless approved by tire or motorcycle manufacturer.