What category is the 1981 Yamaha SR 500 G (cast Wheels)?

The 1981 Yamaha SR 500 G (cast Wheels) has a Category of Classic.

What is the engine size of the 1981 Yamaha SR 500 G (cast Wheels)?

The 1981 Yamaha SR 500 G (cast Wheels) has a Capacity: of 499.00 ccm (30.45 cubic inches).

What type of engine does the 1981 Yamaha SR 500 G (cast Wheels) have?

The 1981 Yamaha SR 500 G (cast Wheels) has a Engine type of Single cylinder.

What is the engine power of the 1981 Yamaha SR 500 G (cast Wheels)?

The 1981 Yamaha SR 500 G (cast Wheels) has a Power of 27.00.

Is the 1981 Yamaha SR 500 G (cast Wheels) air cooled or liquid cooled?

The 1981 Yamaha SR 500 G (cast Wheels) has a Cooling system of Air.

How many gears does the 1981 Yamaha SR 500 G (cast Wheels) have?

The 1981 Yamaha SR 500 G (cast Wheels) has a Gearbox of 5-speed.

How much does the 1981 Yamaha SR 500 G (cast Wheels) weigh?

The 1981 Yamaha SR 500 G (cast Wheels) has a Weight incl. oil, gas, etc of 174.0 kg (383.6 pounds).

What is the top speed of the 1981 Yamaha SR 500 G (cast Wheels)?

The 1981 Yamaha SR 500 G (cast Wheels) has a Top speed of 135.0 km/h (83.9 mph).

Yamaha SR 500 G (cast Wheels) - 1981 Specifications and Reviews

Name: 1981 Yamaha SR 500 G (cast Wheels)
Brand: Yamaha

The 1981 Yamaha SR 500 G combines classic styling with modern reliability, appealing to riders seeking a lightweight, manageable motorcycle. Its single-cylinder engine delivers straightforward performance with minimal complexity, while cast wheels and air cooling keep maintenance simple. Best known for accessible everyday riding and beginner-friendly handling, it remains a popular entry point to motorcycling.

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1981

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General information
Category	Classic
Year	1981
Model	Yamaha SR 500 G (cast wheels)

Engine and Transmission Specifications
Transmission typefinal drive	Chain
Gearbox	5-speed
Cooling system	Air
Fuel control	OHC
Valves per cylinder	2
Bore x stroke	87.0 x 84.0 mm (3.4 x 3.3 inches)
Compression	9.0:1
Power	27.00
Stroke	4
Engine type	Single cylinder
Capacity:	499.00 ccm (30.45 cubic inches)

Physical measures and capacities
Weight incl. oil, gas, etc	174.0 kg (383.6 pounds)
Yamaha SR 500 G (cast Wheels) dimensions and frame
Rear brakes	Expanding brake
Front brakes	Single disc
Rear tyre dimensions	4.00-18
Front tyre dimensions	3.50-19
Speed and acceleration
Top speed	135.0 km/h (83.9 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	12.00 litres (3.17 gallons)

Performance Profile & Rider Fit

27 hp

Peak Power

8.5s

0-60 mph

83.9 mph

Top Speed

Best For

Track25%

City65%

Cornering60%

Daily Riding55%

Touring40%

Passenger30%

Rider Profile

Best For	Best suited to riders who appreciate classic, mechanically simple machines and don't need modern performance to enjoy riding.
Purpose	A lightweight single-cylinder retro roadster built for pure, unfiltered riding feel rather than outright speed or long-distance comfort.
Rider Fit	The light weight and low-speed nature make it easy to manage for riders of most sizes and strengths, including smaller or less experienced riders.
Character	An honest, characterful single that rewards smooth riding with charm, mechanical simplicity, and a raw connection to the road.
Not Ideal For	Not for riders seeking high speed, modern electronics, off-road capability, or a plush, passenger-friendly touring experience.

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