Suzuki TR500 did not use T500 frames, they used beefed up frames to handle the power, companies like Seeley made them, if that is indeed a frame from a 125cc Benelli in the mock up, it's not going to work.
About 1973 Yamaha made a 350 and Suzuki made a 500. The Yamaha was more popular, and won Daytona, but the Suzuki was the better bike, IMO. I forget what the models of these bikes are, but they should be easy to find.
" bearing lube slots at bottom end loop " - top too.Yes, but did you use the special silver (titanium?) cage bottom needle bearings that went with the rods? The bearing there was the critical breakage part. Rods generally do not snap in 2 strokes anywhere like 4 stroke unless that bearing seizes, generally from the roller cage breaking up. Thinking the rod was same material but likely modded with the bearing lube slots at bottom end loop. IIRC the standard bearing cages were copper colored.
Why would you need to move your body weight back to At Least the center line of the rear axle for roadracing?
A trick bike set up for doing wheelies yes but a roadracer?
I see the problem; I said "I usually find I need to get my butt back at least to a line straight up from the rear axle."Only in museums and not on the OP's build. (See pics)
Motorcycle roadrace chassis technology has improved just a little over the last 50+ years.
Oh grow up some. Talk is cheap. Cheap as the 1970 technology you keep relying on... So what does that make your opinion worth?I see the problem; I said "I usually find I need to get my butt back at least to a line straight up from the rear axle."
and you read that as "body weight back to At Least the center line of the rear axle" because you ride the saddle like in your avatar and drag your feet like training wheels.