Yamaha MT-15 - 2021 Specifications and Reviews

The 2021 Yamaha MT-15 is a lightweight naked bike engineered for beginner and young riders seeking an accessible entry into street biking. Its 155cc single-cylinder engine delivers responsive performance with 18.2 horsepower, making it nimble in urban environments while remaining manageable for inexperienced hands. Known for its reliability, fuel efficiency, and agile handling, the MT-15 represents an ideal stepping stone in the Yamaha MT family.

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General information

CategoryNaked bike
Year2021
ModelYamaha MT-15

Engine and Transmission Specifications

Greenhouse gases49.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption2.13 litres/100 km (46.9 km/l or 110.43 mpg)
ClutchWet, multiple-disc coil spring
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionTCI
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection
Valves per Cylinder4
Bore x Stroke58.0 x 58.7 mm (2.3 x 2.3 inches)
Compression11.6:1
Torque13.9 Nm (1.4 kgf-m or 10.3 ft.lbs) @ 8500 RPM
Power18.2 HP (13.3 kW) @ 10000 RPM
Engine typeSingle cylinder, four-stroke
Capacity:155.0 ccm (9.46 cubic inches)

Brakes, suspension, Frame and wheels

WheelsY-spoke wheels
Rear brakesSingle disc. ABS
Diameter282 mm (11.1 inches)
Front brakesSingle disc
Rear tire140/70-M17
Front tire100/80-M17
Rear wheel travel97 mm (3.8 inches)
Rear SuspensionSwingarm
Front wheel travel130 mm (5.1 inches)
Front SuspensionTelescopic
Trail88 mm (3.5 inches)
Frame typeDeltabox
 
 

Physical measures and capacities

Fuel capacity10.00 litres (2.64 US gallons)
Wheelbase1335 mm (52.6 inches)
Ground clearance170 mm (6.7 inches)
Overall width800 mm (31.5 inches)
Overall length2020 mm (79.5 inches)
Overall height1070 mm (42.1 inches)
Seat height810 mm (31.9 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
StarterElectric
Color optionsMetallic Black, Dark Matt Blue, Ice Fluo -Vermillion

Performance Profile & Rider Fit

19 hp
Peak Power
11.5s
0-60 mph

Best For

Track45%
City90%
Cornering80%
Daily Riding85%
Touring30%
Passenger40%

Rider Profile

Best ForWell suited to new and younger riders thanks to its light weight, low seat height, and manageable power delivery.
PurposeDesigned primarily as a nimble, stylish commuter and street bike for urban riding and light weekend fun.
Rider FitVery approachable for shorter or lighter riders, with a low 810mm seat and a featherweight 133kg chassis that's easy to handle at low speed.
CharacterA sporty, aggressive-looking naked bike that rewards revving the small single-cylinder engine and flicking it through corners rather than chasing outright speed.
Not Ideal ForNot a good fit for riders wanting highway touring comfort, sustained high-speed cruising, or two-up long-distance travel.

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

Rider Fit Visualizer

2021 Yamaha MT-15 Rider Ergonomics Assessment

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

Feet:

At 810mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Yamaha MT-15, with a relaxed knee angle of around 120 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 MT-15 is a sleek and stylish motorcycle that offers a powerful and thrilling ride. With its 155cc liquid-cooled engine, this bike delivers excellent performance and fuel efficiency. The MT-15's aggressive styling, comfortable riding position, and nimble handling make it a top choice for urban riders looking for a reliable and versatile bike. Whether you're navigating city streets or hitting the open road, the Yamaha MT-15 delivers a dynamic and exciting riding experience. Overall, the 2021 Yamaha MT-15 is a fantastic option for riders in search of a high-performance and visually striking motorcycle. Yamaha has really outdone themselves with the 2021 MT-15. With its powerful engine, sporty design, and advanced features, this bike offers an unparalleled riding experience. The MT-15's compact and lightweight design makes it maneuverable and easy to handle, while its advanced technology and outstanding performance set it apart from other bikes in its class. If you're in the market for a stylish and agile motorcycle that offers a perfect balance of power and control, the 2021 Yamaha MT-15 is definitely worth considering. Experience the thrill of the open road and the excitement of city riding with this exceptional bike.
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