Just so were on the same page, the 899 was a small bore & de-stroked 1199, the 959 had the same bore as the 899 and the same stroke as the 1199/1299. I'd say the 959/V2 is the small bore 1199. However the 899 makes more torque than the 2025 V2 too, there both rated at the same RPM 10,750. The curve is important but damn, for racing big numbers are even more important.Different cam timing, different valve train design, different compression ratio, different porting for higher rpm power vs low rpm torque, and (need I say it) Desmo valve train for a more aggressive opening and CLOSING valve movement that increases power in the areas necessary without danger of floating the valves. The 899 was basically a smaller bore 1199, and the 1199 made 195 hP and 90+ ft-lbs of torque. 3/4 of 195 is right at 145 hP, which works with the 899's rating.
If you put the 899 heads/cams on the new V-2, you'd gain power but lose low-rpm tractability. hP is an rpm related power number. Torque is not. Look at the power curves and you'll see the difference.
Yeah, you are absolutely right about that. The old V2 is neutered for the 600 class because it's a 750 class bike. It's exponentially more fun riding a slow bike fast than it is a fast bike slow, so I hope this V2 is a success.In the supersport class wasn't the V2 limited? I think the new V2 will allow the bike to compete in a race series without being limited. It's down on power but also weight.
Basically, yes. Some valve clearance changes for the 899/959, and rebalancing the crank for the 1299's heavier pistons and clearances on the crank for the skirts, but otherwise the same engines with slightly different components. Kind of like a Small Block Chevy 307/305 and 350.Just so were on the same page, the 899 was a small bore & de-stroked 1199, the 959 had the same bore as the 899 and the same stroke as the 1199/1299. I'd say the 959/V2 is the small bore 1199. However the 899 makes more torque than the 2025 V2 too, there both rated at the same RPM 10,750. The curve is important but damn, for racing big numbers are even more important.