Motorcycle Frame Straightening Machine - Frame Making Jig. Offering - A Custom built Motorcycle Frame Straightening Machine and Frame Making Jig. It was built over the last 7 or so years to service BMW owners of the "R Series" (R 59 through R 5, 6 7 & 90 Series) Motorcycle Frame repair needs. The Blackhawk 10 Ton Ram and pump is used with a multiplying leverage design doubling to 20 Ton's of pulling force, enough to pull any of these frames in two. Stainless Steel Chain rollers direct the desired direction of pulling loads. Double tube load arms support the rollers and ensure...