Italian fuel hose crossover with crimped on 8mm ID better quality Gates reinforced rubber hose. Fits all carbureted bikes with VHB, PHF, PHM, or others using 8mm internal diameter hose. Outer diameter is ~12mm. Alternative to 12106500, 12106501, 14106500 and 17106550 and 29106500W. Clever usage with standard fuel valves provides up to 3 effective reserve positions, allowing better monitoring of the actual amount of fuel remaining.