Long story short, I am building a frame out of the front half of a 1990 DR650 and the rear half of a GT250. I have a few reasons for doing this and I know that the frame would have ended up lighter/simpler if I had started from scratch, but that discussion is not what this thread is about.
What I would like from you kind people is ideas for lightest/simplest/strongest way to connect the two halves together. The tubing used for this is 1" in diameter. Feel free to add or subtract to what is already there. The steering head is in it's final position but I am thinking I am going to move the swing arm pivot forward 3/4 inch. This will be a twin shock bike, so the "subframe" has to stay fairly beefy. I have been so far up my own ass with this thing, I may be having trouble coming up with the best way. Nothing is really taboo, so have at it.
Here I some ideas that i doodled up in MSpaint;
(the green line is only for reference)
and here is a blank;
I am leaning toward the orange one. I really look forward to any suggestions and thanks for checking this out.
What I would like from you kind people is ideas for lightest/simplest/strongest way to connect the two halves together. The tubing used for this is 1" in diameter. Feel free to add or subtract to what is already there. The steering head is in it's final position but I am thinking I am going to move the swing arm pivot forward 3/4 inch. This will be a twin shock bike, so the "subframe" has to stay fairly beefy. I have been so far up my own ass with this thing, I may be having trouble coming up with the best way. Nothing is really taboo, so have at it.
Here I some ideas that i doodled up in MSpaint;


(the green line is only for reference)

and here is a blank;

I am leaning toward the orange one. I really look forward to any suggestions and thanks for checking this out.