The new Yamaha R1 is a breakthrough bike. I don't think it has any real competition at the moment.
Buttonwillow West Loop (config 27) lap times
Buttonwillow West Loop (config 27)
Buttonwillow West Loop (config 27) is a racing venue in United States with 4 lap times.This page represents the 2.9 kilometer (1.8 mile) configuration of this track.
|Track length||2.95 km / 1.83 miles|
|Track record||1:08.8 (Yamaha YZF-R1)|
|Top speed||232 kph (144 mph) (Yamaha YZF-R1)|