What category is the 2021 Yamaha Smax?

The 2021 Yamaha Smax has a Category of Scooter.

What is the engine size of the 2021 Yamaha Smax?

The 2021 Yamaha Smax has a Capacity: of 155.0 ccm (9.46 cubic inches).

What type of engine does the 2021 Yamaha Smax have?

The 2021 Yamaha Smax has a Engine type of Single cylinder, four-stroke.

Is the 2021 Yamaha Smax air cooled or liquid cooled?

The 2021 Yamaha Smax has a Cooling system of Liquid.

How many gears does the 2021 Yamaha Smax have?

The 2021 Yamaha Smax has a Gearbox of Automatic.

What is the fuel consumption of the 2021 Yamaha Smax?

The 2021 Yamaha Smax has a Fuel consumption of 2.90 litres/100 km (34.5 km/l or 81.11 mpg).

How much does the 2021 Yamaha Smax weigh?

The 2021 Yamaha Smax has a Weight incl. oil, gas, etc of 148.8 kg (328.0 pounds).

What is the seat height of the 2021 Yamaha Smax?

The 2021 Yamaha Smax has a Seat height of 795 mm (31.3 inches) If adjustable, lowest setting..

Yamaha Smax - 2021 Specifications and Reviews

Name: 2021 Yamaha Smax
Brand: Yamaha

The 2021 Yamaha Smax is a stylish 155cc automatic scooter designed for urban commuters seeking practical daily transportation with modern appeal. Its liquid-cooled engine and efficient belt-drive transmission deliver smooth, economical performance ideal for city riding. Known for its contemporary design and user-friendly nature, it suits riders prioritizing convenience and versatility over raw power.

⇄ Compare against another bike 📅 All Years

2021

Add/Upload pictures for this motorcycle

General information
Price as new	3.2 View the detailed rating of value for money, design and look, reliability, etc. Compare with any other bike.
Category	Scooter
Year	2021
Model	Yamaha Smax

Engine and Transmission Specifications
Greenhouse gases	67.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption	2.90 litres/100 km (34.5 km/l or 81.11 mpg)
Driveline	V-Belt Automatic
Transmission type	Belt (final drive)
Gearbox	Automatic
Cooling system	Liquid
Ignition	TCI
Fuel control	Single Overhead Cams (SOHC)
Fuel system	Injection
Valves per Cylinder	4
Bore x Stroke	58.0 x 58.7 mm (2.3 x 2.3 inches)
Compression	11.0:1
Engine type	Single cylinder, four-stroke
Capacity:	155.0 ccm (9.46 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes	Single disc. Hydraulic.
Diameter	267 mm (10.5 inches)
Front brakes	Single disc. Hydraulic.
Rear tire	130/70-13
Front tire	120/70-13
Rear wheel travel	94 mm (3.7 inches)
Rear Suspension	Mid ship horizontal positioned shock
Front wheel travel	79 mm (3.1 inches)
Front Suspension	Telescopic fork
Trail	82 mm (3.2 inches)
Rake (fork angle)	26.0°
Physical measures and capacities
Fuel capacity	7.57 litres (2.00 US gallons)
Wheelbase	1405 mm (55.3 inches)
Overall width	714 mm (28.1 inches)
Overall length	2029 mm (79.9 inches)
Overall height	1295 mm (51.0 inches)
Seat height	795 mm (31.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	148.8 kg (328.0 pounds)

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Comments	Windscreen.
Factory warranty	1 Year Limited Factory Warranty
Carrying capacity	32-liter underseat storage
Light	Dual headlights
Starter	Electric
Color options	Candy Red

Performance Profile & Rider Fit

Best For

Track5%

City90%

Cornering45%

Daily Riding85%

Touring30%

Passenger55%

Rider Profile

Best For	Suitable for beginners and experienced riders alike thanks to its automatic transmission and approachable size.
Purpose	Designed primarily as a stylish, practical commuter scooter for weaving through urban traffic and short errands.
Rider Fit	Low seat height and light weight make it easy to handle for riders of most sizes and confidence levels.
Character	A fun, big-wheeled maxi-style scooter that blends everyday practicality with a sportier stance than typical commuter scooters.
Not Ideal For	Not a good fit for riders wanting highway touring comfort, high-speed performance, or any 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 Smax Rider Ergonomics Assessment

Your height

Inseam (optional)

Units

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

Feet:

At 795mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Yamaha Smax, with a moderate knee angle of around 105 degrees and a slightly forward 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.

Find bikes that fit your height →

Shop This Bike

Find Parts for the Yamaha Smax 2021 Find One For Sale

Rider Reviews

Total comments: 1

MotorcycleDB Review

I recently had the chance to test ride the 2021 Yamaha Smax and I was incredibly impressed with its performance. The 155cc engine delivers smooth and responsive power, making it a joy to ride in both city traffic and on the highway. The Smax's lightweight and nimble handling also make it easy to maneuver through urban streets, while still feeling stable at higher speeds. The comfortable seat and ample storage space under the seat make it a practical choice for daily commuting or longer rides, and the sleek design adds a touch of style to the overall package. Overall, the 2021 Yamaha Smax is a fantastic option for riders who are looking for a versatile and reliable scooter. Its combination of power, agility, and practicality make it a top choice in its class. Whether you're a new rider or an experienced one, the Smax offers a smooth and enjoyable riding experience that is sure to impress. With its impressive performance and stylish design, the Smax is a standout option in the scooter market for 2021.