Reply To: Engine swap with 650/250
Hello,
Its a nice idea but the 650 will twist the frame even if its reinforced a little, the Hyosung GT125/250 frame is even a little weaker than the original GS500 Suzuki frame, however Korea had no intention of putting the 650 in the frame production wise , so the 650 has its own frame for good reason.
Also they did “try” to put a 600cc (600!) concept engine they made in the GS500 frame, but decided it wasn’t good long term. Hence the GS500 was modified with a slight downgrade to just deal with 125 and 250cc , it’s more than enough for it.