Rivale power vs F3 power
Hi guys, I was always curious about this, maybe you can enlighten me! Seems like the Rivale has the same 800 engine as the F3. Same capacity/bore/stroke. So why is the Rivale's output at 125bhp and the F3 at 140 + ?
Is it just a different map on the same engine, or are there more internal differences?
Very curious, any info appreciated!