Yamaha WR155R - 2021 Specifications and Reviews

The 2021 Yamaha WR155R is a lightweight enduro bike designed for beginner to intermediate off-road riders seeking affordable adventure capability. Powered by a fuel-injected 155cc single-cylinder engine producing 16.5 horsepower, it combines nimble handling with reliable performance across varied terrain. Best known for its approachable ergonomics and low seat height, the WR155R excels as an entry-level trail bike for developing off-road skills.

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General information

CategoryEnduro / offroad
Year2021
ModelYamaha WR155R
 
 

Engine and Transmission Specifications

ClutchWet, multipate
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)
Compression11.6:1
Torque14.3 Nm (1.5 kgf-m or 10.5 ft.lbs) @ 6500 RPM
Power16.5 HP (12.0 kW) @ 10000 RPM
Engine detailsForward-inclined cylinder
Engine typeSingle cylinder, four-stroke
Capacity:155.0 ccm (9.46 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc. Hydraulic.
Diameter240 mm (9.4 inches)
Front brakesSingle disc. Hydraulic.
Rear tire4.10-18
Front tire2.75-21
Rear SuspensionSwingarm, (link suspension), Monoshock
Front SuspensionTelescopic forks
Frame typeSteel double cradle

Physical measures and capacities

Fuel capacity8.00 litres (2.11 US gallons)
Wheelbase1430 mm (56.3 inches)
Ground clearance245 mm (9.6 inches)
Overall width840 mm (33.1 inches)
Overall length2145 mm (84.4 inches)
Overall height1200 mm (47.2 inches)
Seat height880 mm (34.6 inches) If adjustable, lowest setting.

Other specs

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

Performance Profile & Rider Fit

16.7 hp
Peak Power
11.5s
0-60 mph

Best For

Track8%
City75%
Cornering38%
Daily Riding66%
Touring18%
Passenger28%

Rider Profile

Best ForGreat for beginners and returning riders; the low-power, lightweight package is forgiving and easy to learn on both on and off pavement.
PurposeA dual-sport trail/enduro machine built for exploring dirt roads, light off-road trails and cheap commuting, not highway mile-crunching.
Rider FitTall 880mm seat and 245mm ground clearance suit taller or confident riders; very light at 134kg, slim and upright with long-travel suspension.
CharacterPlayful, frugal and adventurous little thumper. Rev-happy 155cc single that thrives on trails, dirt tracks and darting through traffic.
Not Ideal ForNot for highway touring, two-up trips or speed seekers; the modest power, small tank and firm seat make long fast rides tiresome.

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

Rider Fit Visualizer

2021 Yamaha WR155R Rider Ergonomics Assessment

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Feet:

At 880mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 Yamaha WR155R, with a cramped knee angle of around 75 degrees and an upright 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 WR155R motorcycle is a powerful and versatile bike that's perfect for both off-road adventures and city streets. Its 155cc engine provides plenty of power for tackling rugged terrain, while its lightweight design makes it easy to maneuver in urban environments. With its sleek and modern styling, comfortable seating, and responsive handling, the WR155R is a top choice for riders looking for a reliable and stylish dual-sport motorcycle. Yamaha has once again delivered a high-quality and reliable motorcycle with the 2021 WR155R. Its superior performance, durable construction, and advanced features make it a great option for riders of all skill levels. Whether you're hitting the trails or cruising through the city, the WR155R offers a smooth and enjoyable ride that will not disappoint. With its combination of power, agility, and style, the 2021 Yamaha WR155R is an excellent choice for anyone in the market for a new dual-sport bike.
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