The all new YZF-R6 accelerated the manufacturer war of the 600 class of sportbikes in 1999. The baby R was released just after Yamaha gave us the all new YZF-R1, the 1000cc big brother.
With true working ram air, geometry setup giving the bike extreme agility, powerfull compact powerplant, and to many, the best looking sport bike ever made, the 99' R6 was THE bike to beat.

Model Information YZF-R6L (USA)
  YZF-R6LC (California)
Weight 375 lbs (dry)
  420 lbs (wet)
Engine Type Liquid-cooled, 4 stroke, DOHC
Piston Arrangement In-line 4
Displacement 599cc
Horsepower 120bhp @ 13,000rpm
Torque 50.2 ft.lbs.
Power to Weight Ratio 0.282 hp/lb wet
  0.325 hp/lb dry
Bore and Stroke 65.5 x 44.5 mm
Redline 15,500 rpm
Carburation 37mm Keihin
Compression Ratio 12.4:1
Oil Capacity 3.70 qts
Fuel Capacity 4.5 gal
  0.92 gal reserve
Radiator Capacity 2.15 qts
Primary Gears 86/44 (1.955)
Secondary Gears 45/15 (3.00)
Chain Size 532, 114 links
Clutch Friction Plates 8
Clutch Steel Plates 7
Clutch Springs 6
Wheel Base 54.4"
Overall Length 79.7"
Overall Width 27.2"
Overall Height 43.5"
Seat Height 32.3"
Lean Angle .
Ground Clearance 5.3"
Rake 24 degrees
Trail 81 mm
Swingarm Length 566 mm
Front Fork 43mm Diameter
Front Spring Rate 42.8 lbs
Rear Spring Rate 543 lbs.
Front Wheel Travel 5.12"
Rear Wheel Travel 4.72"
Front Wheel 17x3.50 Aluminium 3-spoke
Front Tire 120/60ZR-17
Rear Wheel 17X5.50 Aluminium 3-spoke
Rear Tire 180/55ZR-17
Front Caliper 2-pot per side
Front Disc 298x5 mm per side
Rear Caliper 1-pot
Rear Disc 220x5 mm