The Yamaha Alpha motorcycle specifications include a 113 cc (6.90 cu in) engine and an automatic gearbox.
Key specifications
How the Yamaha Alpha compares
This compares the motorcycle with all Yamaha models in this specifications database. The blue marker is this model and the grey line is the Yamaha database average.
About 79% lower than the Yamaha database average. Around the 12th percentile across Yamaha models.
Very close to the Yamaha database average. Around the 35th percentile across Yamaha models.
About 60% smaller than the Yamaha database average. Around the 8th percentile across Yamaha models.
Yamaha database percentile rankings
Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.
113 cc — larger displacement than about 12% of Yamaha models.
775 mm — taller than about 35% of Yamaha models.
5.2 L — larger than about 8% of Yamaha fuel tanks in this database.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
1,270
1,416
10% below average.
775
793
Close to average.
Mechanical overview
Additional useful specifications
| Front tire size | 90/100-10 |
|---|---|
| Rear tire size | 90/100-10 |
| Front tire width | 90 mm |
| Front tire aspect ratio | 100% |
| Front rim diameter | 10 in |
| Rear tire width | 90 mm |
| Rear tire aspect ratio | 100% |
| Rear rim diameter | 10 in |
| Bore/stroke ratio | 0.87:1 (Undersquare) |
Model information
| Year released | 2017 |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 113 cc (6.90 cu in) |
| Torque | 8.1 Nm (0.8 kgf-m or 6.0 ft.lbs) |
| Bore × stroke | 50.0 x 57.8 mm (2.0 x 2.3 inches) |
| Compression ratio | 9.2:1 |
| Cooling system | Liquid |
| Fuel system | Carburettor |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | C.D.I.(Capacitor Discharge lgnition) |
| Starter | Electric & kick |
| Lubrication | Wet Sump |
Transmission and drivetrain
| Gearbox | Automatic |
|---|---|
| Final drive | Belt (final drive) |
| Clutch | Dry, Centrifugal, Shoe |
Chassis and suspension
| Frame | Underbone |
|---|---|
| Front suspension | Telescopic fork |
| Rear suspension | Unit Swing |
Brakes, wheels and tires
| Front brakes | Single disc. Optinal drum brake |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
| Front tire | 90/100-10 |
| Rear tire | 90/100-10 |
Dimensions and weight
| Seat height | 775 mm (30.5 inches) |
|---|---|
| Wheelbase | 1,270 mm (50.0 inches) |
Fuel and emissions
| Fuel capacity | 5.20 L (1.37 US gal) |
|---|
Electrical and instruments
| Electrical | 12 V, 5 AH (10 HR) battery. |
|---|
Other specifications
| Color options | Blue, red, cyan, black, white |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.