Specialty Products Design Mandrel U-Bends

Specialty Products Design mandrel-bends tubing without kinks or crushed walls, which is what a custom exhaust needs to flow. Twisted Choppers stocks SPD mild steel U-bends in 2.5, 3, 4, 5 and 6 inch radius. Cut a U-bend into the sections you need and build a one-off 2-into-1 or drag pipe for a Harley-Davidson chopper or bobber.