Yamaha R3 - 2021 Specifications and Reviews

The 2021 Yamaha R3 is a lightweight sport bike designed for beginner and intermediate riders seeking an accessible entry into sportbike riding. Powered by a 321cc liquid-cooled four-stroke engine producing 41.4 horsepower, it delivers manageable performance with sharp handling and responsive acceleration. Known for its affordability, reliability, and easy-to-master dynamics, the R3 is best suited for new riders building foundational skills.

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General information

CategorySport
Year2021
ModelYamaha R3

Engine and Transmission Specifications

Emission detailsEuro 4
Greenhouse gases88.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption3.80 litres/100 km (26.3 km/l or 61.90 mpg)
Transmission typeChain   (final drive)
Cooling systemLiquid
Lubrication systemWet sump
IgnitionTCI
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Electronic injection
Bore x Stroke68.0 x 44.1 mm (2.7 x 1.7 inches)
Compression11.2:1
Torque28.8 Nm (2.9 kgf-m or 21.2 ft.lbs) @ 9000 RPM
Power41.4 HP (30.2 kW) @ 10750 RPM
Engine typeIn-line four, four-stroke
Capacity:321.0 ccm (19.59 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesSingle disc. Hydraulic.
Diameter298 mm (11.7 inches)
Front brakesSingle disc. Hydraulic
Rear tire140/70-ZR17/C
Front tire110/70-ZR17M/C
Rear wheel travel125 mm (4.9 inches)
Rear SuspensionSwingarm
Front wheel travel130 mm (5.1 inches)
Front SuspensionTelescopic fork
Trail95 mm (3.7 inches)
Rake (fork angle)25.0°
Frame typeDiamond
 
 

Physical measures and capacities

Oil capacity2.40 litres (2.54 US quarts)
Fuel capacity14.00 litres (3.70 US gallons)
Wheelbase1405 mm (55.3 inches)
Ground clearance160 mm (6.3 inches)
Overall width730 mm (28.7 inches)
Overall length2090 mm (82.3 inches)
Overall height1140 mm (44.9 inches)
Seat height780 mm (30.7 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc170.0 kg (374.8 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric
Color optionsIcon Blue, Midnight Black

Performance Profile & Rider Fit

41.4 hp
Peak Power
5.5s
0-60 mph

Best For

Track70%
City80%
Cornering85%
Daily Riding70%
Touring35%
Passenger40%

Rider Profile

Best ForIdeal for beginner to early-intermediate riders looking for a lightweight, approachable sportbike that won't overwhelm them.
PurposeBuilt primarily for fun, nimble cornering and learning sportbike fundamentals rather than outright top-speed thrills.
Rider FitIts low seat height and light 169 kg weight make it manageable for shorter or smaller riders and easy to handle at low speeds.
CharacterA friendly, high-revving little sportbike that rewards smooth inputs and loves twisty roads more than straight-line drag races.
Not Ideal ForNot the right choice for riders wanting serious highway touring comfort, heavy passenger use, or big-bore power delivery.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Yamaha R3 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 780mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Yamaha R3, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 Yamaha R3 motorcycle is a stunning combination of power, agility, and sleek design. With its 320cc liquid-cooled, 4-stroke engine, the R3 delivers a thrilling performance that will leave riders wanting more. The lightweight chassis and nimble handling make it a joy to ride, whether navigating city streets or taking on winding roads. Its bold styling and comfortable seating position make it a standout choice for riders looking for a sporty yet practical ride. Yamaha has once again raised the bar with the 2021 R3, offering riders an exhilarating experience on two wheels. The advanced features and impressive performance of this motorcycle make it a top contender in its class. With its reliable and powerful engine, agile handling, and eye-catching design, the Yamaha R3 is a fantastic choice for riders who want to elevate their riding experience.
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