What category is the 2011 Yamaha Neos 4 Stroke?

The 2011 Yamaha Neos 4 Stroke has a Category of Scooter.

What is the engine size of the 2011 Yamaha Neos 4 Stroke?

The 2011 Yamaha Neos 4 Stroke has a Capacity: of 49.40 ccm (3.01 cubic inches).

What type of engine does the 2011 Yamaha Neos 4 Stroke have?

The 2011 Yamaha Neos 4 Stroke has a Engine type of Single cylinder, four-stroke.

What is the engine power of the 2011 Yamaha Neos 4 Stroke?

The 2011 Yamaha Neos 4 Stroke has a Power of 3.08.

What is the torque of the 2011 Yamaha Neos 4 Stroke?

The 2011 Yamaha Neos 4 Stroke has a Torque of 3.15 Nm (0.3 kgf-m or 2.3 ft.lbs) @ 7000.

Is the 2011 Yamaha Neos 4 Stroke air cooled or liquid cooled?

The 2011 Yamaha Neos 4 Stroke has a Cooling system of Liquid.

How many gears does the 2011 Yamaha Neos 4 Stroke have?

The 2011 Yamaha Neos 4 Stroke has a Gearbox of Automatic.

How much does the 2011 Yamaha Neos 4 Stroke weigh?

The 2011 Yamaha Neos 4 Stroke has a Weight incl. oil, gas, etc of 95.0 kg (209.4 pounds).

What is the seat height of the 2011 Yamaha Neos 4 Stroke?

The 2011 Yamaha Neos 4 Stroke has a Seat height of 790 mm (31.1 inches) If adjustable, lowest setting..

Yamaha Neos 4 Stroke - 2011 Specifications and Reviews

Name: 2011 Yamaha Neos 4 Stroke
Brand: Yamaha

The 2011 Yamaha Neos 4 Stroke is a lightweight 50cc automatic scooter designed for urban commuters and entry-level riders seeking economical, hassle-free transportation. Known for its fuel-efficient liquid-cooled four-stroke engine and automatic transmission, the Neos delivers reliable daily performance with minimal maintenance requirements.

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Engine and Transmission Specifications
Transmission type,final drive	Belt
Gearbox	Automatic
Cooling system	Liquid
Lubrication system	Wet sump
Ignition	TCI
Fuel control	SOHC
Fuel system	Injection
Bore x stroke	38.0 x 43.6 mm (1.5 x 1.7 inches)
Compression	12.0:1
Torque	3.15 Nm (0.3 kgf-m or 2.3 ft.lbs) @ 7000
Power	3.08
Engine type	Single cylinder, four-stroke
Capacity:	49.40 ccm (3.01 cubic inches)


Category	Scooter
Year	2011
Model	Yamaha Neos 4 Stroke
Brakes, suspension, Frame and wheels
Rear brakes diameter	110 mm (4.3 inches)
Rear brakes	Expanding brake (drum brake)
Front brakes diameter	190 mm (7.5 inches)
Front brakes	Single disc
Rear tyre dimensions	130/70-12
Front tyre dimensions	120/70-12
Rear suspension travel	60 mm (2.4 inches)
Rear suspension	Unit swing
Front suspension travel	70 mm (2.8 inches)
Front suspension	Telescopic fork
Physical measures and capacities
Fuel capacity	5.40 litres (1.43 gallons)
Wheelbase	1,275 mm (50.2 inches)
Ground clearance	154 mm (6.1 inches)
Overall length	1,840 mm (72.4 inches)
Overall height	1,118 mm (44.0 inches)
Seat height	790 mm (31.1 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	95.0 kg (209.4 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Color options	Light blue, white, black
Carrying capacity	Lockable helmet/baggage compartment
Starter	Electric & kick

Performance Profile & Rider Fit

3.1 hp

Peak Power

Best For

Track5%

City90%

Cornering40%

Daily Riding75%

Touring10%

Passenger20%

Rider Profile

Best For	Suitable for complete beginners and learners, including those with minimal or no prior riding experience thanks to the automatic transmission and light weight.
Purpose	Built purely for short-hop urban commuting, running errands, and light city traffic navigation rather than any performance or long-distance role.
Rider Fit	Very easy to manage physically with a low seat height, light 95 kg weight, and effortless automatic operation suited to smaller or less experienced riders.
Character	A practical, no-fuss 50cc scooter that prioritizes fuel efficiency, easy handling, and low running costs over excitement or speed.
Not Ideal For	Not suitable for highway travel, touring, carrying a passenger comfortably, or any rider seeking real acceleration or performance.

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

Rider Fit Visualizer

2011 Yamaha Neos 4 Stroke Rider Ergonomics Assessment

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Feet:

At 790mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2011 Yamaha Neos 4 Stroke, with a moderate knee angle of around 100 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.

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