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Sportbikes

2021Yamaha YZF-R3 Monster Energy

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The 2021 Yamaha YZF-R3 Monster Energy is an accessible 321cc sport bike designed for beginner and intermediate riders seeking an agile, lightweight platform. Its 42-horsepower parallel-twin engine delivers smooth, manageable power with excellent fuel efficiency and predictable handling characteristics. Known for its affordable entry point into sport biking, the R3 excels as a nimble track-day machine and daily commuter.

Capacity
321.0 ccm
Engine
Parallel Twin, four-stroke
Gearbox
6-speed
Wet weight
166.9 kg
Seat height
780 mm
Power
42.0 HP (30.7 kW) @ 10750 RPM
⇄ Compare with another bike + Add to garage All model years
Other years 2021 2022

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 39Agility 84Comfort 55Off-road 10Touring 35Road manners 80
Off-road & trail10%
Cornering80%
City riding85%
Daily riding75%
Touring35%
Two-up40%
Track60%
Best for
Built as a lightweight sportbike for learning proper cornering technique, commuting, and having fun on twisty roads rather than chasing top speed.
Built for
A playful, high-revving small-displacement twin that rewards momentum-carrying riding style over brute force.
Not ideal for
Not suited for riders wanting highway-crushing power, long-distance touring comfort, or off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 780mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 Yamaha YZF-R3 Monster Energy, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Range and running costs

Worked out in your browser - nothing is sent to us

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine
Capacity
321.0 ccm
Power
42.0 HP (30.7 kW) @ 10750 RPM
CO2 Emissions
97 CO2 g/km
Torque
29.6 Nm (3.0 kgf-m) @ 9000 RPM
Engine type
Parallel Twin, four-stroke
Fuel consumption
4.20 litres/100 km (23.8 km/l)
Power/weight ratio
0.2516 HP/kg (wet)
Bore x stroke
68.0 x 44.1 mm
Compression
11.2:1
Cooling system
Liquid
Fuel system
Injection
Starting
Electric
Ignition
TCI
Valves per cylinder
4
Transmission
Gearbox
6-speed
Transmission type
Manual
Clutch
Wet multiplate
Performance
0-60 mph
5.22 seconds
Dimensions & weight
Wheelbase
1379 mm
Overall length
2090 mm
Overall width
729 mm
Overall height
1140 mm
Seat height
780 mm
Wet weight
166.9 kg
Fuel capacity
14.00 litres
Ground clearance
160 mm
Oil capacity
2.60 litres
Dry weight
Not on record - add it
Chassis & suspension
Frame
Diamond, steel frame and swingarm
Front suspension
Inverted telescopic fork
Rear suspension
Monocross single shock, adjustable preload
Front wheel travel
130 mm
Rear wheel travel
124 mm
Rake (fork angle)
25.0°
Trail
94 mm
Brakes & wheels
Front brakes
Single disc. ABS.
Front brakes diameter
298 mm
Rear brakes
Single disc. ABS.
ABS
Yes
Front tyre
110/70-17
Rear tyre
140/70-17
Other
Color options
Blue/black/green
Warranty
12

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 20212022
Capacity 321 cc 321 cc
Seat height 780 mm 780 mm
Fuel capacity 14 L 14 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2021 Yamaha YZF-R3 Monster Energy is a sleek and powerful motorcycle that is sure to turn heads on the road. With its striking Monster Energy graphics and bold color scheme, this bike exudes style and attitude. The 321cc twin-cylinder engine delivers impressive performance, making it a great choice for riders looking for both speed and agility. The YZF-R3 is also equipped with advanced features such as ABS brakes and a lightweight chassis, making it easy to handle in any riding condition. Overall, this motorcycle offers a thrilling riding experience combined with a stunning design that will make a statement on the streets.

In conclusion, the 2021 Yamaha YZF-R3 Monster Energy is a top-of-the-line motorcycle that offers both style and performance. With its eye-catching design and powerful engine, this bike is an excellent choice for riders who want to stand out from the crowd. Whether you're a seasoned rider or just starting out, the YZF-R3's advanced features and impressive performance make it a standout option in the sport bike category.

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Common questions

What is the engine size of the Yamaha YZF-R3 Monster Energy?

The 2021 Yamaha YZF-R3 Monster Energy has a Capacity of 321.0 ccm (19.59 cubic inches).

What engine power does the Yamaha YZF-R3 Monster Energy have?

The 2021 Yamaha YZF-R3 Monster Energy has a Power of 42.0 HP (30.7 kW) @ 10750 RPM.

How many gears does the Yamaha YZF-R3 Monster Energy have?

The 2021 Yamaha YZF-R3 Monster Energy has a Gearbox of 6-speed.

What is the torque of the Yamaha YZF-R3 Monster Energy?

The 2021 Yamaha YZF-R3 Monster Energy has a Torque of 29.6 Nm (3.0 kgf-m or 21.8 ft.lbs) @ 9000 RPM.

How much does the Yamaha YZF-R3 Monster Energy weigh?

The 2021 Yamaha YZF-R3 Monster Energy has a Wet weight of 166.9 kg (368.0 pounds).

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