Trends UK Build Your Own V-Twin Motorcycle Engine Build a fully functional, motorized model of a V-Twin motorcycle engine The engine is designed in a 90 degree "V" configuration, with simulatedchain driven overhead camshafts, working valves and illuminating spark plugs It features plated exhausts, engine covers and air filter cover, and plays anengine sound while the model operates Contains nearly 100 pieces and all that you need to assemble the model Comes with a Haynes style manual giving you step by step instruction aswell as interesting information about V-Twin engines