Underbones

2018Yamaha Vega

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The 2018 Yamaha Vega is a lightweight underbone for commuters who want frugal, practical step-through transport. Its 114cc air-cooled single makes 8.1 hp and 8.3 Nm, with a 755 mm seat, a 99 kg wet weight and a 4.2-litre tank.

Capacity: 114.0 ccm
Engine: Single, four-stroke
Gearbox: 4-speed
Dry weight: 92.0 kg
Seat height: 755 mm
Power: 8.1 HP (5.9 kW) @ 7500 RPM

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How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering30%

City riding85%

Daily riding80%

Touring15%

Two-up25%

Track5%

Best for: Built purely for short-hop urban commuting and light errands rather than performance or long-distance travel.
Built for: A humble, economical commuter moped-scooter with modest power that prioritizes fuel efficiency and simplicity over excitement.
Not ideal for: Not suitable for highway speeds, long tours, carrying a passenger over distance, or anyone seeking performance riding.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 755mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2018 Yamaha Vega, with a moderate knee angle of around 105 degrees and a slightly forward riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 114.0 ccm
Power: 8.1 HP (5.9 kW) @ 7500 RPM
Torque: 8.3 Nm (0.8 kgf-m) @ 4500 RPM
Engine type: Single, four-stroke
Power/weight ratio: 0.0880 HP/kg (dry)
Bore x stroke: 50.0 x 57.9 mm
Compression: 9.3:1
Cooling system: Air
Fuel system: Carburettor
Starting: Electric & kick
Ignition: TCI
Valves per cylinder: 2
Lubrication system: Force-feed lubrication,

Transmission

Gearbox: 4-speed
Transmission type: Manual
Final drive: Chain
Clutch: Dry, Centrifugal, Shoe

Dimensions & weight

Wheelbase: 1235 mm
Overall length: 1930 mm
Overall width: 675 mm
Overall height: 1055 mm
Seat height: 755 mm
Dry weight: 92.0 kg
Wet weight: 99.0 kg
Fuel capacity: 4.20 litres
Ground clearance: 126 mm

Chassis & suspension

Frame: Underbone
Front suspension: Telescopic fork
Rear suspension: Swingarm
Rake (fork angle): 26.3°
Trail: 75 mm

Brakes & wheels

Front brakes: Expanding brake (drum brake)
Rear brakes: Expanding brake (drum brake)
Front tyre: 70/90-17
Rear tyre: 80/90-17

Other

Color options: Red, Black
Comments: Sold in Asia.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

Rider Reviews

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MotorcycleDB

The 2018 Yamaha Vega motorcycle is a reliable and affordable option for riders looking for a versatile and efficient bike. With a 115cc engine, the Vega offers smooth acceleration and responsive handling, making it a great choice for daily commuting or weekend rides. The sleek design and comfortable seating position make it a stylish option for riders of all experience levels. Whether you're navigating city streets or cruising on the highway, the Yamaha Vega delivers a smooth and enjoyable ride.

Overall, the 2018 Yamaha Vega motorcycle is a solid choice for riders seeking a dependable and stylish bike at an affordable price point. With its efficient engine and comfortable design, the Vega is well-suited for both daily commuting and longer rides. Whether you're a new rider or a seasoned enthusiast, the Yamaha Vega offers a great balance of performance and practicality. If you're in the market for a reliable and affordable motorcycle, the 2018 Yamaha Vega is definitely worth considering.

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