Yamaha FZ-X - 2021 Specifications and Reviews

The 2021 Yamaha FZ-X is a lightweight naked bike designed for beginner and commuter riders seeking affordable, easy-to-handle daily transport. Powered by a modest 149cc single-cylinder engine producing 12 HP, it prioritizes fuel efficiency and manageable performance over raw power. Known for its simple, practical design and reliable air-cooled architecture, the FZ-X excels in urban environments and congested traffic conditions.

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General information

CategoryNaked bike
Year2021
ModelYamaha FZ-X

Engine and Transmission Specifications

ClutchWet, multiple-disc
Transmission typeChain   (final drive)
Gearbox5-speed
Cooling systemAir
Lubrication systemForce-feed lubrication, wet sump
IgnitionTCI
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection
Valves per Cylinder2
Bore x Stroke57.3 x 57.9 mm (2.3 x 2.3 inches)
Compression9.6:1
Torque13.3 Nm (1.4 kgf-m or 9.8 ft.lbs) @ 5500 RPM
Power12.0 HP (8.8 kW) @ 7250 RPM
Engine typeSingle cylinder, four-stroke
Capacity:149.0 ccm (9.09 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesExpanding brake (drum brake)
Diameter282 mm (11.1 inches)
Front brakesSingle disc
Rear tire140/60-17
Front tire100/80-17
Rear Suspension7-Step Adjustable Monocross
Front SuspensionTelescopic fork
Trail101 mm (4.0 inches)
Rake (fork angle)25.0°
 
 

Physical measures and capacities

Fuel capacity10.00 litres (2.64 US gallons)
Wheelbase1330 mm (52.4 inches)
Ground clearance165 mm (6.5 inches)
Overall width785 mm (30.9 inches)
Overall length2020 mm (79.5 inches)
Overall height1115 mm (43.9 inches)
Seat height810 mm (31.9 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc139.0 kg (306.4 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsSold in Asia.
StarterElectric
Color optionsMatte Copper, Matte Black, Metallic Blue

Performance Profile & Rider Fit

12.4 hp
Peak Power

Best For

Track10%
City80%
Cornering55%
Daily Riding80%
Touring35%
Passenger40%

Rider Profile

Best ForThis is a beginner-friendly commuter bike, well suited to new riders or those upgrading from smaller scooters.
PurposeDesigned primarily as an urban commuter with a rugged, scrambler-inspired look rather than genuine off-road or high-speed capability.
Rider FitIts low seat height and light weight make it accessible and manageable for riders of most sizes, including shorter or less experienced ones.
CharacterA modern, stylish neo-retro commuter with modest performance, easy manners, and everyday practicality.
Not Ideal ForIt is not the right choice for riders seeking highway touring comfort, high-speed performance, or serious 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 FZ-X 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 FZ-X, 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 FZ-X is a stylish and powerful motorcycle that offers a thrilling riding experience. With its 149cc engine, this bike delivers impressive performance and smooth acceleration. The FZ-X also features a rugged and adventure-ready design, making it perfect for urban streets or off-road exploration. Its superior handling and comfortable seating position make it a great option for riders of all skill levels. Overall, the Yamaha FZ-X is a fantastic choice for anyone looking for a versatile and capable motorcycle. The 2021 Yamaha FZ-X is a standout in the motorcycle market, offering a perfect combination of performance, style, and versatility. Its 149cc engine provides plenty of power for thrilling rides, while its rugged design makes it well-suited for all types of riding conditions. Whether you're cruising through the city or hitting the trails, the FZ-X delivers a smooth and enjoyable experience. With its superior handling and comfortable seating position, this bike is a great option for riders of all levels of experience. If you're in the market for a reliable and stylish motorcycle, the Yamaha FZ-X is definitely worth considering.
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