bloodbath
New Member
I have a 72 CB350 K4 project I'm working on (link in signature) and I want to stiffen up the frame to tighten up the handling, especially under power and braking. I wanted some advice on my game plan.
These are my proposed modifications:
1) Mig weld the backbone and any other spotwelded joints
2) Add tubular braces between the downtube and the rear tubular struts (Ill attach a technical drawing when I have my comp in front of me)
3) I plan on boxing in the frame under the seat (the open stamped section) as well as an x-brace between the left and right rails under the seat to provide horizontal strength.
4) Finally, I want to seal up around all the joints where sheet metal meets tubular portions. This is more of a cosmetic change, kinda like frenching a door. (-Would Lead work better?)
Any advice, previous experience with stiffening a CB frame would be appreciated.
These are my proposed modifications:
1) Mig weld the backbone and any other spotwelded joints
2) Add tubular braces between the downtube and the rear tubular struts (Ill attach a technical drawing when I have my comp in front of me)
3) I plan on boxing in the frame under the seat (the open stamped section) as well as an x-brace between the left and right rails under the seat to provide horizontal strength.
4) Finally, I want to seal up around all the joints where sheet metal meets tubular portions. This is more of a cosmetic change, kinda like frenching a door. (-Would Lead work better?)
Any advice, previous experience with stiffening a CB frame would be appreciated.