The 2005 R6 may look the same as 2004, but the changes for 2005 are vast! The frame and swingarm internal structures have been improved in increase rigidity and strength (such as in the steering head and rear suspension pivots). The new inverted fork now has a stronger axle clamp and the front brake discs increase to 310mm and use radial mount calipers. Throttle body size grew to 40mm and the injectors have been changed to 12-hole style and new pressure regulator. The velocity stacks and ignition curse have also been changed. The engine cylinder bores now have a new coating to boot. A few of the smaller changes, but still important, are modified undercowl shape, clip-on position, and modified headlight cutout in the front fairing for better lighting. There has also been a special edition to commemorate Valentino Rossi's wins and Yamaha 50th Anviversary, the YZF-R46 (an R6 with a Rossi scheme).

Model Information YZF-R6T (USA)
  YZF-R6TC (California)
Weight 357 lbs (dry)
Engine Type Liquid Cooled, 4 Stroke, DOHC
Piston Arrangement In-Line 4
Displacement 600cc
Horsepower 108*
Torque .
Power to Weight Ratio .
Bore and Stroke .
Redline .
Carburation 40mm FI throttle bodies
Compression Ratio 12.4:1
Oil Capacity 2.85 qts
Fuel Capacity 4.5 gal
  0.92 gal reserve
Radiator Capacity .
Primary Gears 86/44 (1.955)
Secondary Gears 48/16 (3.000)
Chain Size 530
Clutch Friction Plates 8
Clutch Steel Plates 7
Clutch Springs 6
Wheel Base 54.3"
Overall Length 80.5"
Overall Width 27.1"
Overall Height .
Seat Height 32.5"
Lean Angle .
Ground Clearance .
Rake 24.5 degrees
Trail 3.7"
Swingarm Length
Front Fork 41mm Inverted
Front Spring Rate .
Rear Spring Rate .
Front Wheel Travel 4.7"
Rear Wheel Travel 4.7"
Front Wheel 17x3.50 Aluminium 5-spoke
Front Tire 120/70ZR-17
Rear Wheel 17X5.50 Aluminium 5-spoke
Rear Tire 180/55ZR17
Front Caliper 2-pot per side
Front Disc 310x4.5 mm per side
Rear Caliper 1-pot
Rear Disc 220x5 mm