19mm Intake Gaskets Spacer Pit Bike Pocket Bike ATV QUAD Chinese Parts X15 X18 Go to amazon.com Related posts Top 11 best x15 drone parts FeatureBrand New Quality Parts. Ships Fast!! Description19mm Intake Manifold Spacer, Gasket & O-Ring For Horizontal Honda Clone Engines. Fits Chinese Made Pocket Bikes, Quads, Pit Bikes With 17mm -22mm Manifold / Carb Set-Ups.