Abstract: Pneumatic tires adapted to use on bicycles have a number of criteria that need to be evaluated. For high performance bicycle riding, such as in mountain bike races, it is advantageous to optimize performance. Standard tires with tubes have ease of repair in the replacement of a punctured tube, have the ability to maintain pressure for long periods, and do not require special adaptation of the rim for sealing.

Abstract: A mechanically joined steering assembly for supporting the wheel of a wheeled vehicle for steering movement relative to the frame of the vehicle. The steering assembly includes a crown attached by mechanical fasteners to blades and to a central steering portion joining the assembly to the frame of the vehicle. The parts joined are the blades (16), steerer (14), crown (12), and reinforcements (24). Mechanical fasteners serviceable with common tools provide a reinforced steering assembly of greater strength than welded or brazed constructions. This assembly allows the use of metallic, advanced composite, or thermoplastic components. Adjustments of axle location and steering geometry are made by sliding blades (16) up or down in crown (12). Blades (16), steerer (14), and crown (12) retain the original cold drawn strength of the metal used by mechanically joining without brazing or welding.