Intake Manifold Pipe for 250cc Air Water Cooled Dirt Bikes ATVs 250 CC 250c Pit Bike Quad 4 Wheeler SSR Coolster Roketa Taotao Sunl JCL Tank Supermach Kandi Intake Manifold Pipe. Top Quality Guaranteed. Intake Manifold Pipe for CG250cc Air/Water Cooled Engine, most Chinese 250cc Dirt Bikes and ATVs Inside Diameter: 30mm; Bolt hole spacing:48mm Mounting Bolt spacing: 48mm; Mounting Hole spacing: 62mm; Dosen't come with hardware