Swivel type intake manifold from Takegawa for the Keihin PC18 PC20 carbs on CRF50 and Z50. Rotates up to 80 degrees making install clearance issues a thing of the past. Same design we've been using for years on the VM26 and PE28/PWK28 adjustable manifolds, now available for the PC18 and PC20 carburetors. Runs the carburetor at 13 degrees off horizontal. 22mm ID at intake port