From the 1098R review on motorcycle.com...
Quote:
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World Superbike rules allow 1200cc Twins in '08, albeit with a 13 lbs weight penalty and air restrictor plates (like a washer that sits between the cylinder head and throttle bodies). The initial size, or opening, will be 50mm, and pending how a Twin performs in WSBK, restrictors will go up or down in size in 2mm increments: 46mm minimum opening to a maximum opening of 52mm. If the big twin starts dominating races, in goes the smaller plate(s); if it gets left eating dust, the larger plates go in. So with those technicalities out of the way, the first point of change from the regular ol' 1098 – other than DTC– was opening up the L-Twin's bore and stroke.
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1098R redline: 10,500-rpm
07 GSXR 1000 redline: 13,750-rpm
Engine configuration has more to do with parity then just displacement alone.
(this is coming from someone who runs a 1200 against 650's and still looses)