35mm - center-center distance of adapter bolts.Connection - 24mmManifold adapter for scooter Peugeot 50. With this adapter you can mount Dellorto or other type of carburetor.Peugeot Buxy 50Peugeot Elyseo 50Peugeot Elystar 50Peugeot Looxor 50 carburetorPeugeot Speedake 50Peugeot Speedfight 1 50 water..