is it possable to fit an 999 motor into any of the supersport frames someone must have given it a go i have a 04 999s motor swingarm shock oilcooler exhaust etc have searched this forum couldnt find anything
The engine cases of the 999 are different from those used on the Supersports. Specifically, the swingarm mounting point is wider on the Supersport (and Monster and Sport Classics) than on the Superbikes, because those models house the swingarm pivot bearing inside the engine cases.
This is true even of the Monsters that used the Superbike-based 4-valve watercooled motors.
To fit a Superbike motor in a Supersport frame, major modifications would need to be done to either the swingarm or the engine cases.
I have a 999 swingarm and shock was thinking more along the lines of will a supersport frame take this motor,head clearances etc ,what i have in mind is 999s motor/swingarm/shock, 91on supersport frame hailwood tank ,74-75 ss fairing seat and ducktail, 91 adjustable showa forks, ignitech unit, 41mm fcr,s and mount a radiator under the seat, slowly getting the parts together hoping to have it running by march next year. cheers shayne