He had to cut the lower half of the cradle off on both sides to get the engine to fit..
Catman he wount need any other support in the frame, theres 1 long bolt in the upper rear part of the motor going threw the maint fraim aswell as in the rear lower part of the motor, and 2 in the front threw each cradle. Plus its a steel frame, its not going anywhere..
He did the mock up in an FZR400 frame which is aluminum, had it running and driving. He made it down the road and back, before he made it back home the motor twisted the frame like a pretzel. That 600 frame is nothing to worry about
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