Yamaha YZF R15 - 2021 Specifications and Reviews

The 2021 Yamaha YZF R15 is a lightweight 155cc sport bike ideal for beginners and commuters seeking an agile, nimble ride. Known for its sharp styling and responsive handling, the single-cylinder engine delivers predictable power through a 6-speed gearbox. Liquid cooling and fuel injection ensure reliable daily performance in an accessible, budget-friendly package.

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General information

CategorySport
Year2021
ModelYamaha YZF R15
 
 

Engine and Transmission Specifications

ClutchMultiplate, wet
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication systemWet Sump
IgnitionTCI
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection
Bore x Stroke58.0 x 58.7 mm (2.3 x 2.3 inches)
Compression10.6:1
Torque14.1 Nm (1.4 kgf-m or 10.4 ft.lbs) @ 8500 RPM
Power18.4 HP (13.4 kW) @ 10000 RPM
Engine typeSingle cylinder, four-stroke
Capacity:155.0 ccm (9.46 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Diameter282 mm (11.1 inches)
Front brakesSingle disc
Rear tire140/70-17
Front tire100/80-17
Rear wheel travel97 mm (3.8 inches)
Rear SuspensionLinked Monocross
Front wheel travel130 mm (5.1 inches)
Front SuspensionTelescopic
Frame typeDeltabox
 
 

Physical measures and capacities

Oil capacity1.00 litres (1.06 US quarts)
Fuel capacity11.00 litres (2.91 US gallons)
Wheelbase1325 mm (52.2 inches)
Ground clearance170 mm (6.7 inches)
Overall width725 mm (28.5 inches)
Overall length1990 mm (78.3 inches)
Overall height1135 mm (44.7 inches)
Seat height815 mm (32.1 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc138.0 kg (304.2 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsSold in Australia.
StarterElectric
Color optionsThunder Grey, Racing Blue

Performance Profile & Rider Fit

18.4 hp
Peak Power
9.5s
0-60 mph

Best For

Track55%
City85%
Cornering80%
Daily Riding78%
Touring35%
Passenger40%

Rider Profile

Best ForIdeal for beginner to early-intermediate riders looking for a sporty, non-intimidating first bike.
PurposeBuilt for learning sportbike ergonomics and cornering technique on a lightweight, low-power platform rather than outright speed.
Rider FitVery light weight and low seat height make it accessible for smaller or less experienced riders to handle confidently.
CharacterA nimble, high-revving small-displacement sportbike that rewards momentum-carrying riding over brute power.
Not Ideal ForNot suited for riders wanting serious highway touring speed, long-distance comfort, or off-road capability.

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

Rider Fit Visualizer

2021 Yamaha YZF R15 Rider Ergonomics Assessment

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

Feet:

At 815mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Yamaha YZF R15, 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 YZF R15 is a stunning motorcycle that has captured the hearts of many riders. With its sleek design and powerful performance, it is a true standout in the world of sport bikes. The R15 is equipped with a 155cc, liquid-cooled, 4-stroke engine that delivers impressive power and torque, making it a joy to ride on both city streets and open highways. Its lightweight frame and nimble handling make it a dream to maneuver through tight corners and twisty roads, while its advanced braking system provides confidence-inspiring stopping power. With its impressive features and performance, the 2021 Yamaha YZF R15 is a top choice for riders looking for a thrilling and exhilarating ride. Overall, the 2021 Yamaha YZF R15 is an exceptional motorcycle that offers a perfect blend of style, performance, and agility. Whether you're a new rider or a seasoned motorcyclist, the R15 is sure to impress with its cutting-edge technology and striking design. With its powerful engine, responsive handling, and advanced braking system, the Yamaha YZF R15 is a force to be reckoned with on the road. If you're in the market for a sport bike that delivers an adrenaline-pumping ride, the 2021 Yamaha YZF R15 is definitely worth considering.
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