450 frame bracing

[Teckhardt]

I was able to plate the center of the swingarm and box in around the axle mount over the weekend.

The boxing will mean that I cannot use the snail adjusters I was originally planning. I do have an extra set of the eye type already.

Next comes the small tube at the axle pivot on the frame and a small gusset at the same spot. Also need to put the braces from the axle tube up to the backbone.