He carried over the front number plate, electronics, front wheel, and seat section, but went in a completely different direction for the engine. It’s got last year’s internals, but within sand-cast cases from a 1098R used in the 2007 World Superbike championship. He also completely changed the transmission, adding a Nova gearbox and revising gearing significantly. He brought first gear way up, as tall as second gear was last year, then created closer ratios for better acceleration.
Source: MotorCyclistOnline.com