OEM Type Exhaust Clamp Sets

Front Exhaust Pipe Clamps

The two clamps for the front pipe mount above the sidecar loop on Knuckleheads and below on Big Twin Flatheads. Therefore the kit for 1937-1946 Knuckleheads includes a 1-1/8” small clamp and the kit for 1937-1948 Big Twin Flatheads and 1936 Knuckleheads includes a 1” clamp. When the factory introduced the accessory flex type pipe covers in 1947, the clamps for the front pipe were changed to a P-design for OHV models and mounted below the sidecar loops.