14 August. Friday 2026
Yamaha YZF-R3 Monster Energy - 2021 Specifications and Reviews
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.
2021
General information | |
| Price as new | Do you know this bike?Click here to rate it. We miss 1 vote to show the rating. |
| Category | Sport |
| Year | 2021 |
| Model | Yamaha YZF-R3 Monster Energy |
| | |
Engine and Transmission Specifications | |
| Greenhouse gases | 97.4 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 4.20 litres/100 km (23.8 km/l or 56.00 mpg) |
| Driveline | Constant mesh |
| Clutch | Wet multiplate |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Ignition | TCI: Transistor Controlled Ignition |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Fuel Injection with YCC-T and YCC-I |
| Valves per Cylinder | 4 |
| Bore x Stroke | 68.0 x 44.1 mm (2.7 x 1.7 inches) |
| Compression | 11.2:1 |
| Torque | 29.6 Nm (3.0 kgf-m or 21.8 ft.lbs) @ 9000 RPM |
| Power | 42.0 HP (30.7 kW) @ 10750 RPM |
| Engine details | 180-degree crank design and integrated counterbalancer |
| Engine type | Twin, four-stroke |
| Capacity: | 321.0 ccm (19.59 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Wheels | 10-spoke cast aluminum. Dunlop® Sportmax GPR-300 tires. |
| Rear brakes | Single disc. ABS. |
| Diameter | 298 mm (11.7 inches) |
| Front brakes | Single disc. ABS. |
| Rear tire | 140/70-17 |
| Front tire | 110/70-17 |
| Rear wheel travel | 124 mm (4.9 inches) |
| Rear Suspension | Monocross single shock, adjustable preload |
| Front wheel travel | 130 mm (5.1 inches) |
| Front Suspension | Inverted telescopic fork |
| Trail | 94 mm (3.7 inches) |
| Rake (fork angle) | 25.0° |
| Frame type | Diamond, steel frame and swingarm |
Physical measures and capacities | |
| Oil capacity | 2.60 litres (2.75 US quarts) |
| Fuel capacity | 14.00 litres (3.70 US gallons) |
| Wheelbase | 1379 mm (54.3 inches) |
| Overall width | 729 mm (28.7 inches) |
| Overall length | 2090 mm (82.3 inches) |
| Overall height | 1140 mm (44.9 inches) |
| Seat height | 780 mm (30.7 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 166.9 kg (368.0 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Factory warranty | 1 Year Limited Factory Warranty |
| Light | LED headlight |
| Instruments | Digital gear position, fuel capacity, real time and average fuel economy, water temp, clock and an oil change trip meter |
| Starter | Electric |
| Color options | Blue/black/green |
Performance Profile & Rider Fit
42 hp
Peak Power
5.8s
0-60 mph
Best For
Track60%
City85%
Cornering80%
Daily Riding75%
Touring35%
Passenger40%
Rider Profile
| Best For | Ideal for beginner to early-intermediate riders thanks to its light weight, low seat height, and manageable power delivery. |
| Purpose | Built as a lightweight sportbike for learning proper cornering technique, commuting, and having fun on twisty roads rather than chasing top speed. |
| Rider Fit | A low seat height and slim, lightweight chassis make it accessible to shorter or less physically strong riders. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
Total comments: 1
MotorcycleDB Review
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.Add a Comment
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