Age grading measures running performance quality adjusting for age, sex and distance. Higher percentage indicates better performance, 100% considered best possible. Different distances yield unique age graded scores
Suzuki GSX-R 600 SRAD features 599cc engine producing 80 kW power. Kawasaki ZX-6R weighs 440 lbs, Honda CBR600F3 459 lbs, Yamaha YZF600R 485 lbs