This was built years ago and I don’t remember all the details now. Runs fast and smooth. The exhaust is very loud but it sound like a big V2 when idling. The crankshaft is modified for the the 43mm Mallosi cylinder kit, and the engine displacement is actually 68cc. The carburetor is a Dellorto 16mm. I never found the time to install the Brembo discs and calipers and it is with the stock drum brakes, so I drive it carefully. The gas tank is from a Simson SR1 moped.