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Yamaha YZF-R1

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Yamaha YZF-R1
White streamlined motorcycle left side on a raised dais at an exhibition
A 2015 Yamaha YZF-R1 model
ManufacturerYamaha Motor Company
Also calledYamaha R1
Production1998–present
PredecessorYamaha YZF1000R
ClassSport bike[1]
RelatedYamaha FZR1000

The Yamaha YZF-R1, or simply R1, is a 998 cc (60.9 cu in) sports motorcycle made by Yamaha. It was first released in 1998, undergoing significant updates in 2000, 2002, 2004, 2006, 2007, 2009, 2015,[2] 2018[3] and 2020.[4]

1998–1999

[edit]
A red and white version of the first Yamaha YZF-R1 model in 1998

Yamaha launched the YZF-R1 in 1998 after redesigning the Genesis engine to create a more compact engine by raising the gearbox input shaft and allowing the gearbox output shaft to be placed beneath it. This "stacked gearbox" was followed by other manufacturers. Compacting the engine made it much shorter, allowing the wheelbase to be shortened as well and the center of gravity to be optimized. The swingarm could be made longer without compromising the overall wheelbase, which was a short 1,385 mm (54.5 in). Four 40 mm Keihin CV carburetors fed fuel to the engine.

The R1 was also equipped with a 41 mm KYB upside-down front fork and 300 mm semi-floating disc brakes. The instrument panel was electronic, with a self-diagnosis system and digital speed readout. The exhaust used Yamaha's Exhaust Ultimate Power Valve (EXUP) system,[5] which controlled exhaust gas flow to maximize engine power production at all revs, resulting in a high-power and high-torque engine.

The Yamaha YZF-R6 was introduced in 1999 as the 600 cc version of the R1 super bike.

The 1999 R1 saw only minor changes, apart from paint and graphics. Improvements included a redesigned gear change linkage and an increase in gear change shaft length. Fuel tank reserve capacity was reduced from 5.5 to 4.0 L (1.21 to 0.88 imp gal; 1.5 to 1.1 US gal), while total fuel tank capacity was unchanged at 18 L (4.0 imp gal; 4.8 US gal).

Motorcycle Consumer News tests of the 1998 model year YZF-R1 yielded a 0 to 60 mph (0 to 97 km/h) time of 2.96 seconds and 0 to 100 mph (0 to 161 km/h) of 5.93 seconds, a 0 to 1⁄4 mi (0.00 to 0.40 km) time of 10.19 seconds at 131.40 mph (211.47 km/h), and a top speed of 168 mph (270 km/h), with deceleration from 60 to 0 mph (97 to 0 km/h) of 113.9 ft (34.7 m).[1] For the 1999 model year, Cycle World tests recorded a 0 to 60 mph (0 to 97 km/h) time of 3.0 seconds, 0 to 1⁄4 mi (0.00 to 0.40 km) time of 10.31 seconds at 139.55 mph (224.58 km/h), and a top speed of 170 mph (270 km/h).[6]

2000–2001

[edit]
2001 YZF-R1

In 2000, Yamaha introduced a series of changes to improve the R1, and minor changes to the bodywork to allow for better long-duration ride handling. Yamaha's main design goal was to sharpen the pre-existing bike and not to redesign it. The dry weight was reduced five pounds to 414 lb (188 kg).[7]

At 127.8 hp (95.3 kW) at the rear wheel,[7] top-end output remained the same, but changes to the engine management system were intended to result in a smoother, broader distribution of power. The bodywork remained similar to that of the previous R1, although a 3% reduction in the drag coefficient was achieved. The headlight housing's profile was sharpened, the side panels were made more aerodynamic, and the windscreen was reshaped for better rider protection.

The seating area was also updated. The fuel tank was reshaped, with a more relaxed rear angle and deeper leg recesses to provide a better riding feel. The seat extended further towards the rear of the tank, and the new steeper seating position put additional weight on the front end. All of this was aimed at improving weight bias, thus offering sharper cornering and more stability.

Mechanically, the carburetors were re-jetted in an effort to improve throttle response, especially in the low end, all the way up to the bike's 11,750 rpm redline. The redesigned camshafts were lightened and used internal oil ways to lubricate journals that, when combined with reduced tappet clearance, provided less friction and created less engine noise. The gearbox received a taller first gear, a hollow chrome-moly gear change shaft with an additional bearing, and a completely redesigned shift linkage and foot pedal. These changes were aimed at eliminating problems with the transmission in earlier models, and to help seamlessly transfer the bike's power to the road.

2002–2003

[edit]
2002 YZF-R1 with an aftermarket high-mount exhaust

A new fuel injection system was introduced for the 2002 year, which worked like a carburetor by employing a CV carburetor slide controlled by a vacuum created by the engine. With a similar power output to the 2000-2001 bike, though, the engine remained largely the same. One notable improvement was the use of new cylinder sleeves of a high silicon content alloy containing magnesium that minimized thermal distortion, reducing oil consumption. The exhaust system was changed from a 4-into-1 to a new titanium 4-into-2-into-1 design.

Also in 2002, Yamaha released the newly developed Deltabox frame,[8] whose hydro-formed construction reduced the total number of frame welds and improved the frame's rigidity by 30%. The cooling system was redesigned for better performance and compactness. The rear end of the motorcycle was updated and streamlined with an LED taillight, allowing for cleaner rear body lines when choosing one of several common aftermarket modifications. These modifications included removal of the turn signal stalks and stock license plate bracket, and replacing them with replacements that "hugged" the body or frame. The 2002 model also saw front lighting improvements in the form of sharper headlights and the addition of side "parking" lights within the twin-headlight panel, giving a more angular appearance. This also provided additional aftermarket possibilities, such as the removal of the front turn signals and the repurposing of the parking lights as directional or hazard markers while stopped.

In 2002, Cycle World reported fuel mileage of 38 mpg‑US (6.2 L/100 km; 46 mpg‑imp), a 0 to 60 mph (0 to 97 km/h) time of 2.9 seconds, a 0 to 1⁄4 mi (0.00 to 0.40 km) time of 10.32 seconds at 137.60 mph (221.45 km/h), and a top speed of 167 mph (269 km/h).[9]

For 2003, the only change was the addition of hazard warning lights and low-beam headlights, which stay on when the engine is running.

2004–2005

[edit]
2004 YZF-R1

With the competition advancing, Yamaha made some major changes to the R1. This included style updates, like an underseat dual exhaust, and performance upgrades including radial brakes, and, for the first time, a ram-air intake. Furthermore, earlier models' tendency for wheelies was reduced by changing the geometry of the frame and weight distribution. The all-new engine was no longer used as a stressed member of the chassis, and had a separate top crankcase and cylinder block.

2005 YZF-R1 instrumentation

The 2004 R1 weighs 172 kg (379 lb) dry. The conventional front brake calipers were replaced by radially mounted calipers, activated by a radial master cylinder. A factory-installed steering damper was also added in 2004. Combined with the changes to the frame, this helped to eliminate the tendency of the handlebars to shake violently during rapid acceleration or deceleration on less-than-perfect surfaces, a phenomenon known as speed wobble or a tank slapper.

Motorcycle Consumer News tests of the 2004 model year YZF-R1S yielded a 0 to 60 mph (0 to 97 km/h) time of 3.04 seconds and 0 to 100 mph (0 to 161 km/h) of 5.42 seconds, a quarter-mile time of 9.90 seconds at 144.98 mph (233.32 km/h), and a top speed of 189 mph (304 km/h).[1]

2006

[edit]
2006 YZF-R1

The R1's swingarm was extended by 20 mm (0.79 in) to reduce instability during acceleration.

That year, Yamaha also released a limited edition version, the LE, in original Yamaha racing colors to celebrate its 50th anniversary. The LE and SP models had custom Öhlins front and rear suspension units developed by the same team as the YZR-M1 MotoGP bike. Custom forged aluminum Marchesini wheels specifically designed for the LE shaved nearly a pound off the bike's unsprung weight. A back torque-limiting slipper clutch and an integrated lap timer rounded out the package, essentially making the LE a production racer. Only 500 units were made for the United States, with another 500 units for Europe.

2007–2008

[edit]
2007-2008 YZF-R1
2007 Yamaha YZF-R1 used by Noriyuki Haga in the Superbike World Championship.

An all-new YZF-R1 for the 2007 model year was announced on 8 October 2006. It had an all-new inline-four engine, going back to a more conventional four-valve-per-cylinder design rather than Yamaha's trademark five-valve Genesis layout. It also had the Yamaha Chip Control Intake (YCC-I) electronic variable-length intake funnel system, Yamaha Chip Control Throttle (YCC-T) fly-by-wire throttle system, slipper clutch, all-new aluminum Deltabox frame and swingarm, six-piston radial-mount front brake calipers with 310 mm discs, a wider radiator, and M1 styling on the new large ram-air intakes in the front fairing. There were no major changes for 2008.

Power at the rear wheel was 156.7 hp (116.9 kW) @ 10,160 rpm.[10] Motorcycle Consumer News tests of the 2007 model year YZF-R1 yielded a 0 to 60 mph (0 to 97 km/h) time of 2.94 seconds and 0 to 100 mph (0 to 161 km/h) of 5.46 seconds, a ¼ mile time of 9.88 seconds at 145.50 mph (234.16 km/h).[1]

2009–2014

[edit]
2009 YZF-R1 Limited Launch Edition
2011 YZF-R1

In late 2008, Yamaha announced they would release an all new R1 for 2009. The new R1 took engine technology from the M1 MotoGP bike with its crossplane crankshaft, making the 2009 R1 the first production sports bike to use a crossplane crankshaft.[11] Power delivery is the same as with a 90° V4 with a 180° crank (such as the Honda VFR800, and similar to the 65° V4 in the Yamaha V-Max[12]). Yamaha claimed the bike would give the rider "two engines in one", with the low-end torque of a twin and the pace of an inline-four.[citation needed] As with the previous incarnation of the R1, the 2009 model used Yamaha Chip Control Throttle (YCC-T).

Another advancement included in the 2009 model was D-Mode Throttle Control Valve Mapping, which allows a rider to choose between three distinct maps depending on the rider's environment. Each mode of operation controls YCC-T characteristics, changing how the R1 reacts to rider input. The first mode is Standard Mode, which delivers performance for a wide variety of driving conditions. The second mode is "A" mode, which will give a rider more available power in the lower to mid RPM range. The third mode is "B" mode, a dialling back of the previous mode designed to soften throttle response in inclement weather and heavy traffic. D-Mode throttle control is controlled by the rider through a forward mode button near the throttle. The instrument panel was more comprehensive than previous models, and the 2009/2010 Yamaha YZF-R1 model had a gear indicator as standard.

Overall handling of the R1 was improved through changes to frame and suspension. A new cast magnesium subframe was designed for the 2009 R1, resulting in lower weight and aiding mass centralisation. The rear shock absorber on the 2009 offers variable speed damping, as well as easy-to-tweak screw-adjustable preload. The rear shock absorber connected underneath the swing arm via a linkage, a change from previous models. To improve overall handling and safety, Yamaha included an electronic steering damper.

The front had the same classic R1 design cues, though the air-intake location and headlamp design were revamped on the 2009 model. This new design used only projector lamps in the headlights and used the newfound design space on the nose to position ram-air intakes next to the lights.

Testing the 2010 model on a tri-oval racetrack, Motorcyclist magazine reported a 0 to 1⁄4 mi (0.00 to 0.40 km) time of 10.02 seconds @ 144.23 mph (232.12 km/h), and fuel consumption of 25 mpg‑US (9.4 L/100 km; 30 mpg‑imp).[13] Motorcycle Consumer News reported a tested top speed of 176.7 mph (284.4 km/h).[1]

In 2012, the Yamaha YZF-R1 received traction control and a redesigned nose, and a special edition 50th Anniversary R1 was released. The special edition commemorates the participation of Yamaha in MotoGP, and its colours are inspired by the Assen TT-winning MotoGP bike. Only 2000 units of this edition were made.

2015–2024

[edit]
2015 YZF-R1
Yamaha R1M at 2015 Tokyo Motor Show

At the centennial EICMA motorcycle show, Yamaha officially unveiled a new generation of R1,[14] similar to the contemporary YZR M1. Yamaha claims a wet weight of 199 kg (439 lb).[15] Engine changes include a decreased bore-to-stroke ratio, a larger airbox, a finger-follower valve system, and fracture split titanium conrods.[16] Magnesium wheels are standard, and information is presented to the rider through a user-customizable thin-film display.[16]

The new bike has an electronics package that includes a sophisticated Traction Control System (TCS), a Slide Control System (SCS), an anti-wheelie Lift Control System (LIF), linked antilock brakes, a Launch Control System (LCS), a Quick Shift System (QSS), and selectable power modes. The Slide Control System on the R1 is the first on a production motorcycle.[16][17] Information is fed to the bike through a six-axis inertial measurement unit and other sensors over 100 times a second.[17] Power delivery is tapered through throttle valve manipulation and ignition and fuel cuts.[18]

A second higher-spec, limited production model called the R1M is also produced, and is differentiated from the standard model by having more expensive components, such as electronic semi-active Öhlins suspension, carbon fiber bodywork, Yamaha's Communication Control Unit (CCU), a Y-TRAC data logging system, and grippier Bridgestone tires with a larger rear 200/55 size.

Starting in 2016, the lower-spec R1S model has also been offered.[19][20]

At EICMA 2017 Yamaha presented the next generation of R1 and R1M. They have a better Quick Shift System, an updated Lift (wheelie) Control System and fulfill Euro 4 requirements. The R1M got a new Öhlins Electronic Racing Suspension.[3] In 2019 next new models started.[4]

Specifications

[edit]
Year 1998 - 1999[6][21] 2000–2001[22][23] 2002 - 2003[9][24] 2004–2005 2006 2006 LE 2007[25]-2008 2009[13] 2010[26] 2012-2014[27] 2015–2024[28]
Engine
Type 998 cc (60.9 cu in), liquid-cooled, 20-valve, DOHC, inline four-cylinder 998 cc, liquid-cooled, 16-valve, DOHC, inline four-cylinder 998 cc, liquid-cooled, 16-valve (titanium), DOHC, in-line four-cylinder, cross-plane crankshaft
Bore × stroke 74 mm × 58 mm (2.9 in × 2.3 in) 77 mm × 53.6 mm (3.03 in × 2.11 in) 78 mm × 52.2 mm (3.07 in × 2.06 in) 79 mm x 50.9 mm
Fuel system Carburetor Mikuni BDSR40 carburetors with TPS Mikuni fuel injection Fuel injection, motor-driven secondary throttle valves Fuel injection, dual-valve throttle bodies with motor-driven secondary valves Fuel Injection with YCC-T and YCC-I
Compression ratio 11.8:1 12.5:1 12.7:1 12.3 : 1 13.0 : 1
Rev limiter 13,750 rpm
Manufacturer rated horsepower (crank) 150 hp (110 kW)[29] 150.0 hp (111.9 kW) @ 10,000 rpm 152.0 hp (113.3 kW) @ 10,500 rpm 172 hp (128 kW), 180 hp (130 kW) with ram air[30][31] 132.4 kW (177.6 hp) @ 12,500 rpm / 139.0 kW (186.4 hp) @ 12,500 rpm with ram air[32] 191 hp (142 kW) @ 12,500 rpm without ram air[33] 199 hp (148 kW)[18]
200.0 hp (149.1 kW)(with track only Circuit ECU)[18]
Rear wheel horsepower ,[1] [6] [23] ,[1][9]  [10][1] [1] 162.4 hp (121.1 kW)@ 12,720 rpm[34]
Torque 72.7 lb⋅ft (98.6 N⋅m),[1] 72.0 lb⋅ft (97.6 N⋅m) @ 8,250 rpm[6] 70.4 lb⋅ft (95.4 N⋅m)[1] 106.6 N⋅m (78.6 lbf⋅ft) @ 10,500 rpm (claimed)[31] 75.5 lb⋅ft (102.4 N⋅m),[1] 73.6 lb⋅ft (99.8 N⋅m) @ 8,150 rpm[9] 76.2 lb⋅ft (103.3 N⋅m)[13] 78.6 lb⋅ft (106.6 N⋅m),@ 8,790 rpm[34] (rear wheel)
Final drive #530 O-ring chain 525 O-ring chain
Ignition TCI
Transmission 6-speed w/ multi-plate clutch 6-speed w/ multi-plate slipper clutch 6-speed w/multi-plate coil spring slipper clutch
Chassis
Brakes/Front Dual 298 mm discs Dual 320 mm discs, radial calipers Dual 310 mm discs, radial-mount forged 6-piston calipers Hydraulic dual disc, Ø 320 mm
Brakes/Rear Single Piston (Pin Sliding) Caliper w/ 240 mm disc Single Piston (Pin Sliding) Caliper w/ 220 mm disc
Suspension/Front 41 mm inverted telescopic fork 43 mm inverted telescopic fork, 120 mm (4.7 in) travel
Suspension/Rear Single shock, adj. preload, compression damping, rebound damping, 130 mm (5.1 in) travel Single shock, 130 mm (5.1 in) travel Single shock, adj. preload, compression damping, rebound damping, 130 mm (5.1 in) travel Single Öhlins shock, adj. preload, adj. high-/low-speed compression damping, rebound damping, 130 mm (5.1 in) travel Single shock, piggyback reservoir, spring preload, adj. high-/low-speed compression damping, rebound damping Swingarm, 120 mm travel (link suspension), Monoshock, 120 mm travel Swingarm, (link suspension), 120 mm travel
Tires/Front 120/70-ZR17
Tires/Rear 190/50-ZR17 190/55-ZR17
Dimensions
Length 2,035 mm (80.1 in) 2,065 mm (81.3 in) 2,090 mm (82.1 in) 2,060 mm (81.1 in) 2,070 mm (81.5 in) 2,070 mm (81 in) 2,055 mm (80.9 in)
Width 695 mm (27.4 in) 720 mm (28 in) 720 mm (28.3 in) 710 mm (28.1 in) 715 mm (28.1 in) 690 mm (27 in)
Height 1,095 mm (43.1 in) 1,105 mm (43.5 in) 1,100 mm (43.5 in) 1,110 mm (43.7 in) 1,130 mm (44.5 in) 1,130 mm (44 in) 1,150 mm (45 in)
Seat height 800 mm (31 in) 815 mm (32.1 in) 818 mm (32.2 in) 815 mm (32.1 in) 835 mm (32.9 in) 830 mm (32.8 in) 835 mm (32.9 in) 855 mm (33.7 in)
Wheelbase 1,415 mm (55.7 in) (1,394 mm (54.9 in) claimed)[21][29] 1,395 mm (54.9 in) 1,415 mm (55.7 in)
Rake 24.0°
Trail 92 mm (3.6 in) 103 mm (4.1 in) 97 mm (3.8 in) 100 mm (4.0 in) 102 mm (4.0 in) 102 mm (4.0 in)
Fuel capacity 18 L (4.0 imp gal; 4.8 US gal) 17 L (3.7 imp gal; 4.5 US gal) 18 L (4.0 imp gal; 4.8 US gal) 18 L (4.0 imp gal; 4.8 US gal) 17 L (3.7 imp gal; 4.5 US gal)
Dry weight 190.1 kg (419 lb)[6] 187.8 kg (414 lb)[23] 187 kg (412 lb)[9] 172.0 kg (379.2 lb) 172.8 kg (381 lb) 173.7 kg (383 lb) 177 kg (390 lb)[32] 177 kg (390 lb),[35] 203.2 kg (448 lb)[13]
Wet weight(incl. oil and full fuel tank) 198.2 kg (437 lb) (claimed)[29] 200.9 kg (443 lb)[23] 193 kg (425 lb), 194 kg (428 lb) (Cali)[36] 206 kg (454 lb) (claimed),[33] 216.4 kg (477 lb)[13] 206 kg 199 kg (439 lb)[15]
Performance
Top speed 270 km/h (168 mph)[1] 278 km/h (173 mph)[1] 288 km/h (179 mph)[1] 293 km/h (182 mph)[1]
0 to 97 km/h (0 to 60 mph) 2.96[1] sec. 2.99[1] sec. 3.04[1] sec. 2.64[1] sec.
0 to 161 km/h (0 to 100 mph) 5.93[1] sec. 5.79[1] sec. 5.42[1] sec. 5.12[1] sec.
0 to 1⁄4 mi (0.00 to 0.40 km) 10.19[1] sec. 10.17[1] sec. 9.90[1] sec. 9.88[1] sec. 10.05[1] sec. 10.31 @ 148.12[37]
10.11 sec. @ 146.62 mph[34]
9.83 sec. @ 149.91 mph[38]
Braking 97 to 0 km/h (60 to 0 mph) 34.7 m (113.9 ft)[1] 35.1 m (115.3 ft)[1] 35.8 m (117.3 ft)[1] 35.9 m (117.9 ft)[1] 37.8 m (124.0 ft)[1] 38.4 m (126.0 ft)[34]
Fuel consumption 5.50 L/100 km; 51.4 mpg‑imp (42.8 mpg‑US)[1] 5.67 L/100 km; 49.8 mpg‑imp (41.5 mpg‑US)[1] 5.65 L/100 km; 50.0 mpg‑imp (41.6 mpg‑US)[1] 6.53 L/100 km; 43.2 mpg‑imp (36.0 mpg‑US)[1] 8.0 L/100 km; 35.3 mpg‑imp (29.4 mpg‑US)[1]
CO2 168g/km[39]

Motorsport

[edit]

The R1 achieved five victories in the Macau Grand Prix between 1999 and 2013. Lorenzo Alfonsi won the 2004 FIM Superstock 1000 Cup, followed by Didier Van Keymeulen in 2005.[40]

Yamaha World Superbike riders Troy Corser and Noriyuki Haga finished 2nd and 3rd respectively in the 2008 Superbike World Championship season.[40]

John McGuinness won the Senior and inaugural Superbike races at the 2005 Isle of Man TT.[41]

Yamaha World Superbike rider Ben Spies won the 2009 Superbike World Championship season title, recording 14 wins and 11 poles in his one season in WSBK.[40] Pata Yamaha World Superbike rider Toprak Razgatlıoğlu won the 2021 Superbike World Championship, recording 13 wins and 3 Superpoles.

The Yamaha Factory Racing Team with riders N. Nakasuga, P. Espargaro, and B. Smith won the 2015 Suzuka 8 Hours endurance race.[42] Katsuyuki Nakasuga, Alex Lowes and Pol Espargaro won the 2016 Suzuka 8 Hours race. Katsuyuki Nakasuga, Alex Lowes, Michael van der Mark won the 2017 and 2018 Suzuka 8 Hours races.

Tommy Hill won the British Superbike title in 2011 on board a YZF-R1. Yamaha rider Josh Brookes won the 2015 title.[43]

See also

[edit]

References

[edit]
  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am "Performance Index - Winter '11/'12 Edition" (PDF), Motorcycle Consumer News, Bowtie Magazines, January 2012, retrieved May 31, 2012
  2. ^
  3. ^ a b motorcycle.com, EICMA 2017: 2018 Yamaha YZF-R1 and YZF-R1M, retrieved 23 December 2022.
  4. ^ a b https://www.visordown.com/reviews/first-ride/yamaha-r1-2020-review, retrieved 23 December 2022.
  5. ^ "All you ever wanted to know about your EXUP...and much..." Yamaha R1 Forum: YZF-R1 Forums. Retrieved 2022-02-02.
  6. ^ a b c d e Catterson, Brian (May 1999), "YZF-R1", Cycle World, vol. 38, no. 5, Newport Beach, California: Hachette Filipacchi Media U.S., pp. 47–50, ISSN 0011-4286
  7. ^ a b "Sport Rider: Yamaha Weights and Measurements", Sport Rider, 2009, archived from the original on March 12, 2009
  8. ^ Mayhersohn, Norman (November 1987), "Yamaha FZR", Popular Mechanics, p. 48
  9. ^ a b c d e Canet, Don (June 2002), "Show of Force; Turn and burn aboard the Sport Fours", Cycle World, vol. 41, no. 6, Newport Beach, California: Hachette Filipacchi Media U.S., pp. 46–50, ISSN 0011-4286
  10. ^ a b Cernicky, Mark (September 2008), "Master Bike XI", Cycle World, vol. 47, no. 8, Newport Beach, California: Hachette Filipacchi Media U.S., ISSN 0011-4286
  11. ^ 2009 Yamaha YZF-R1 Features Uneven Firing Order For Improved Power Delivery, Yamaha press release via Road Racing World, 2008, retrieved 2009-05-23
  12. ^ Duke, Kevin (August 26, 2008), 2009 Star V-Max Review/Test, Motorcycle.com, archived from the original on 1 May 2010, retrieved 2010-04-20
  13. ^ a b c d e Henning, Ari (April 2010), "Liter-bike outliers: different for a reason.(MC Comparison Aprilia RSV4R VS. Yamaha YZF-R1)", Motorcyclist, pp. 62–68, retrieved 2011-04-26
  14. ^ "Home - Eicma". eicma.it.
  15. ^ a b "2018 Yamaha YZF-R1 Supersport Motorcycle - Photo Gallery, Video, Specs, Features, Offers, Inventory and more". www.yamahamotorsports.com.
  16. ^ a b c Conner, Blake (June 22, 2015). "2015 Yamaha YZF-R1 - ROAD TEST". Cycle World. Retrieved February 4, 2017.
  17. ^ a b Klein, Max (July 20, 2015). "2015 Yamaha YZF-R1: MD Ride Review". Retrieved February 4, 2017.
  18. ^ a b c Conner, Blake (February 21, 2015). "2015 Yamaha YZF-R1/R1M - First Ride". Cycle World. Retrieved February 4, 2017.
  19. ^ Canet, Don (July 1, 2016). "2016 Yamaha YZF-R1M vs. YZF-R1S - COMPARISON TEST". Cycle World. Retrieved February 4, 2017.
  20. ^ Adams, Bradley (February 26, 2015). "2015 Yamaha YZF-R1M First Ride Review". Sport Rider. Retrieved February 4, 2017.
  21. ^ a b Canet, Don (February 1998), "Rippin' Ride", Cycle World, vol. 37, no. 2, Newport Beach, California: Hachette Filipacchi Media U.S., pp. 32–36, ISSN 0011-4286
  22. ^ 2000 YZF-R1 specifications from Yamaha Motors
  23. ^ a b c d "Superbikes 2000!", Motorcyclist, pp. 41–62, July 2000
  24. ^ 2002 YZF-R1 specifications from Yamaha Motors
  25. ^ 2007 YZF-R1 specifications Archived 2006-10-28 at the Wayback Machine from Yamaha Motors
  26. ^ "[title] Motor". yamaha-motor.eu. Retrieved 2016-03-25.
  27. ^ UK, Yamaha Motor. "[title]". yamaha-motor.eu. Retrieved 2016-03-25.
  28. ^ UK, Yamaha Motor. "[title]". yamaha-motor.eu. Retrieved 2016-03-25.
  29. ^ a b c Anderson, Steve (December 1997), "YZF R1; Something wicked this way comes", Cycle World, vol. 36, no. 12, Newport Beach, California: Hachette Filipacchi Media U.S., pp. 34–39, ISSN 0011-4286
  30. ^ Tech. Spec--2004-YZF-R1 from Yamaha Motor Europe
  31. ^ a b "Specs; Yamaha YZF-R1", The Sunday Times, Perth, Western Australia, p. R.76, 11 September 2005
  32. ^ a b Tech. Spec--2007-YZF-R1 from Yamaha Motor Europe
  33. ^ a b 2009 Yamaha YZF-R1 Archived 2009-03-04 at the Wayback Machine from Yamaha Motor Europe
  34. ^ a b c d Adams, Bradley (July 19, 2016). "Aprilia RSV4 RR vs. Ducati 959 Panigale vs. Kawasaki ZX-10R vs. Yamaha YZF-R1 - COMPARISON TEST". Cycle World. Retrieved July 20, 2016.
  35. ^ "2009 Yamaha R1 Reportedly Heavier and Less Powerful than the 2007 R1 - Asphalt & Rubber". asphaltandrubber.com. 15 April 2009.
  36. ^ 2002 Yamaha YZF-R1 Service Manual
  37. ^ "Sportbike Performance Numbers". Sport Rider. February 25, 2014. Retrieved 2016-09-05.
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  43. ^ "2018 Bennetts British Superbike Championship in association with Pirelli". www.britishsuperbike.com.
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