Originally Posted by gunnerbuck
Just curious, with your subframe cracking were you running luggage racks that brace down to the footpeg area or just a unbraced load on the tail with softbags...
They did attach down at the pax peg mount also but were not really rigid enough to provide any support to the subframe:
They cracked at the front mounts once per side, & broke the long cap screws at the back twice, but this was over probably 70K+ km of loaded touring & a few crashes. I just got some 5/8" dia .049" wall 4130 tube to make the Mk2 versions out of & have been machining up some beefier mounting bushes. The new ones will be similar in layout but might be stiff enough to brace the back end a bit.
I got no idea why my subframe has been less durable than yours Gunner...
I think the first breakage I had owed a lot to Australian corrugations while carrying camping gear & extra gas, although I travel fairly light compared to many. The extra gusset I put in after the 2nd breakage really should have been done during the first repair in hindsight.