Commando rear frame loop straightening

If that is the only damage to the frame, I would be surprised if it needed putting on a jig. I presume the loop is bent down aft of the damper top mounts. You could consider heating the frame and bending it back up until the top of the loop is straight with the portion forward of the mounts. I think the frames are made of mild steel so heating to cherry red and allowing to cool after bending should not be a big issue.

One of the Shropshire branch members had his bike fall from the hydraulic bike lift, bending the frame in the region of the gearbox loop. His frame was straightened by a company called Metal Malarkey in south Shropshire. They did a good job but He spent considerable time fixing small assembly errors, ie things that were not assembled correctly or tightened properly. Most modern bikes just have an engine/gearbox that is dropped in the frame and tightened up. Unfortunately the Commando is not one of them.

A previous owner managed to put an 'S' bend and flat sections in the rear loop of my 750, I assume that it had been bent by a heavy carrier with no support struts.

He's a long way from you but Norman White made a very good job of cutting off the damaged loop and making a replacement. He can also accurately jig the frame to check for other damage.

If you take a complete bike anywhere for frame work then you're always going to face dismantling costs if you decide not to go ahead. I'd be a bit wary of a flat charge because they really don't know at the moment what's going to need doing.

Hi Mike,

one of the lads in Yorkshire branch had a commando that had been trashedat the back by a forklift truk when it was in a crate for shipping. He is an ex engineer & managed to straighten it out himself. It now handles as good as new.

If you put a question on the yorkshire Branch website I will ask him to read it & give a reply of what he did if he thinks it will help you. http://www.yorkshirenortonownersclub.org.uk/forum/

Cheers Don