Topic: CB360 Frame Welding

[gte619n]

Hello all,

I'm about to the point in my 1974 CB360 race build that I'm starting to think about the frame. I'm sticking with nearly all stock mechanicals, but I'm going to go with a cafe tank/seat (how novel). Anways, I was wondering what modifications I can make to the frame to assist in handling. I've heard that reinforcing the rear seat area helps a lot. Other than welding some cross members back in that area, is there anything else I should consdier?

Anyone have any links to pictures that would help me out? Can I just use 1" flat bar across it or should I go with tubing? If so, what's the magic size?

Thanks a lot,
Evan

[crazypj]

Either tube or box section. cut out the clamp sections first and make braket to hold seat in position, pretty much directly behind shock mounts. Main flex is from front where tubes kink in to main frame section, couple of gussets will really help . swing arm could do with a brace as well.
Is it just a cafe or are you going racing? if so, what organisation and class? (its legal for CCS but not AHRMA?) Pic is 1977 CJ250 with a 400'conversion' good for about 120mph!
PJ

[chung]

Flat stock is heavy and weak. (as to strength added per weight added) Tubing is the better route. NR211 is a good electrode and stay with something like A36/A500 or some other low carbon steel alloy tubing. CHROMO is not the hot ticket when "fusion welding" on a bike frame. Not that it can't be brazed or welded but embrittlement/cracking is a great danger if you don't have an expert welder (operater) handy.

Email me some pix and I might make a few suggestions on placement of the bracing, I sold my last CB360T almost 6 yeas ago and the memories fade with time. Sweetest 6 speed this side of a Yamaha RD  though I may have a few Pix if I can find them