For 2007, the R1 also gets throttle-by-wire similar to the system found on the R6 last year. The powerful chip reads throttle position changes every 1000th of a second. The new R1 will also come with a stock ramp-type slipper clutch for smoother downshifts and corner entry. Radiator capacity is up by 13%, and the exhaust system (titanium, except for a stainless mid-pipe and catalyst) is redesigned for 2007.
Net effect of these engine changes (and others we will discuss after we test the bike) is a claimed increase in power across the board (low-end, mid-range and top-end power). Peak power is said to increase by 5hp to 178hp at the crank.
http://www.motorcycledaily.com/09october06_2007yamaha_r1.htm
Net effect of these engine changes (and others we will discuss after we test the bike) is a claimed increase in power across the board (low-end, mid-range and top-end power). Peak power is said to increase by 5hp to 178hp at the crank.
http://www.motorcycledaily.com/09october06_2007yamaha_r1.htm