Yamaha YZF-R6 - 2005
Yamaha announce the launch of a significantly uprated YZF-R6 for 2005, following the hugely successful introduction of the new
generation YZF-R1 last season. With maximum power increased by 3 HP, and featuring new upside down front forks, revised chassis geometry and a GP-developed
braking system, the new R6 exemplifies Yamaha's 'no-compromise' philosophy.
Against fierce competition, Yamaha's R-series machines have established themselves as the leaders on the street and at the race track - as witnessed by the strong performance of
Team Yamaha Motor Italia rider Jurgen van den Goorbergh, and Team Yamaha Motor Germany's Kevin Curtain in the ultra-competitive 2004 WSS race series.
For 2005 the latest generation R6 benefits from a range of engine and chassis upgrades that are designed to offer today's supersport rider "best in class" performance, and in doing so
they aim to re-establish Yamaha as the foremost brand in the highly competitive 600cc supersport class.
Larger diameter throttle bodies
In order to boost linear and high rpm performance, and also to improve acceleration characteristics, the 600cc in-line four cylinder engine's fuel injection system is equipped with
larger diameter 40mm throttle bodies, and the ECU setting has been modified to match these changes.
Resized air funnels
To match the larger throttle bodies, the latest R6 engine is also equipped with resized air funnels on cylinders 2 and 3, while all four funnels have been reshaped for optimised air
intake pulsation efficiency.
New combustion chamber surface finish
Engine performance is further enhanced by the adoption of a new surface finish on the combustion chambers, and a high-efficiency twin ring fan is used on the 2005 machine's radiator.
The R6 chassis has undergone a major transformation for the new season, and it benefits from the investment of higher specification braking and suspension systems that are designed to
deliver class-leading performance on the street and track.
Larger diameter 310mm dual front discs with radial mount calipers
New larger diameter 310mm front discs are slowed by Grand Prix developed radial mount calipers which offer accurate feedback. Disc thickness is reduced from 5mm to 4.5mm for
2005, and so in spite of the increase in disc diameter from 298mm to 310mm, the overall weight of the front discs has been reduced by 7%.
Radial pump front brake system
The front brake operating system also benefits from MotoGP developed technology, and features a radial pump type design for even higher levels of controllability.
Fully adjustable 41mm upside down front forks
Another signifiant change which is sure to be welcomed by street riders and production racers is the investment of new upside down forks. Equipped with flex resistant 41mm tubes, and
offering full adjustment for preload, as well as rebound and compression damping, this high specification front suspension system delivers enhanced chassis rigidity for improved handling characteristics.
Revised chassis geometry
The adoption of the new front forks has resulted in revised chassis geometry, and caster angle is increased to 24.5 degrees, while trail is increased to 95mm. (2004 R6 model was 24
degrees caster and 86mm trail.) Furthermore, the wheelbase has been increased by 5mm to 1385mm.
New specification rear suspension
In order to optimise the handling performance benefits gained by the new front forks and revised chassis geometry, the variance ratio of the rear suspension linkage has been revised,
and the rigidity of the linkage has been changed.
New front tyre
To complement the new front forks the 2005 model R6 runs with a 120/70 ZR17 front tyre, which offers improved driveability, and replaces the previous model's slightly lower profile 120/60 design. In order to accommodate the new tyre, the bike's lower cowl chin length is reduced slightly, and a longer sidestand is ?tted.
Yamaha's engineers concentrated on the three areas that really matter to the 600 supersport rider, and have raised significantly the R6's game in each one of them. With its higher performance engine, better turning characteristics and Grand Prix derived front braking system, the 2005 Yamaha YZF-R6 is ready to force its way back to the top of the 600cc supersport category.
Engine Type - 600cc, Liquid cooled, 4-stroke, forward inclined inline 4 cylinder, DOHC, 16 valves
Bore x Stroke - 65.5 x 44.5mm
Compression Ratio - 12.4 1
Carburetion - Fuel Injection
Ignition - Digital DC-CDI
Transmission - 6-speed w/multi-plate clutch
Final Drive - #530O-ring chain
Suspension/Front - 41mm inverted telescopic fork w/adjustable preload, compression and rebound damping; 4.7" travel
Suspension/Rear - Single shock w/piggyback reservoir and adjustable preload, compression and rebound damping; 4.7" travel
Brakes/Front - Dual 310mm floating discs w/radial mount, forged 4-piston calipers
Brakes/Rear - 220mm disc w/ single-piston caliper
Tyres/Front - 120/70-ZR17
Tyres/Rear - 180-55-ZR17
Length - 80.5"
Width - 27.1"
Height - 43.5"
Seat Height - 32.3"
Wheelbase - 54.5"
Rake (Caster Angle) - 24.5°
Trail - 3.7"
Fuel Capacity - 4.5 gallons
Oil Capacity (with oil filter change) - 2.85 Qt.
Dry Weight - 357 lbs.
Primary Reduction Ratio - 86/44 (1.955)
Secondary Reduction Ratio - 48/16 (3.000)
Gear Ratio - 1st Gear - 37/13 (2.846)
Gear Ratio - 2nd Gear - 28/18 (1.556)
Gear Ratio - 3rd Gear - 28/18 (1.556)
Gear Ratio - 4th Gear - 32/24 (1.333)
Gear Ratio - 5th Gear - 25/21 (1.190)
Gear Ratio - 6th Gear - 26/24 (1.083)
Color - Team Yamaha Blue/White; Rapid Red: Raven
Warranty - 1 Year (Limited Factory Warranty)