Frame is welded it is castings and extrusions
People say 7xxx alloy is hard to weld but
These frames are welded all the time and most are ok
But no one knows .they are just doing it blind.
Most likely using 6082 to make the y piece and using
5052 filler and not heat treating frame back to
Full...
Hello this is my first post so hope some one can help
Fist we'll start with the project which is my honda cr500 af
Explanation cr is Hondas two stoke motocross bike and AF stands for alloy frame
Now honda never produced an alloy framed two stroke with 500cc
But people have been building hybrid...