The Yamaha RZ 50 motorcycle specifications include a 49 cc (2.99 cu in) engine, a 6-speed gearbox, and a listed weight of 80 kg (176.4 lb).
Key specifications
The 2002 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha RZ 50 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 91% lower than the Yamaha database average. Around the 5th percentile across Yamaha models.
About 6% lower than the Yamaha database average. Around the 24th percentile across Yamaha models.
About 23% smaller than the Yamaha database average. Around the 35th 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.
49 cc — larger displacement than about 5% of Yamaha models.
745 mm — taller than about 24% of Yamaha models.
10 L — larger than about 35% 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.
1,805
2,082
13% below average.
615
823
25% below average.
970
1,172
17% below average.
1,215
1,416
14% below average.
745
793
6% below average.
135
181
25% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 70/100-17 40P |
|---|---|
| Rear tire size | 80/90-17 44P |
| Front tire width | 70 mm |
| Front tire aspect ratio | 100% |
| Front rim diameter | 17 in |
| Rear tire width | 80 mm |
| Rear tire aspect ratio | 90% |
| Rear rim diameter | 17 in |
| Bore/stroke ratio | 1.01:1 (Square) |
Engine specifications
| Engine type | Single cylinder, two-stroke |
|---|---|
| Displacement | 49 cc (2.99 cu in) |
| Torque | 5.9 Nm (0.6 kgf-m or 4.4 ft.lbs) @ 8,000 rpm |
| Bore × stroke | 40.0 x 39.7 mm (1.6 x 1.6 inches) |
| Compression ratio | 7.5:1 |
| Cooling system | Liquid |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Expanding brake |
| Front tire | 70/100-17 40P |
| Rear tire | 80/90-17 44P |
Dimensions and weight
| Dry weight | 80 kg (176.4 lb) |
|---|---|
| Seat height | 745 mm (29.3 inches) |
| Overall length | 1,805 mm (71.1 inches) |
| Overall width | 615 mm (24.2 inches) |
| Overall height | 970 mm (38.2 inches) |
| Wheelbase | 1,215 mm (47.8 inches) |
| Ground clearance | 135 mm (5.3 inches) |
Fuel and emissions
| Fuel capacity | 10.00 L (2.64 US gal) |
|---|
Performance
| Power/weight ratio | 0.0900 hp/kg |
|---|
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.