The Yamaha TT-R 125 motorcycle specifications include a 123.7 cc (7.55 cu in) engine, power of 9.8 hp (7.2 kW) @ 8,000 rpm, and a listed weight of 74 kg (163.1 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 TT-R 125 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 82% lower than the Yamaha database average. Around the 15th percentile across Yamaha models.
About 78% lower than the Yamaha database average. Around the 14th percentile across Yamaha models.
Very close to 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.
9.8 hp — more powerful than about 15% of Yamaha models with power data.
124 cc — larger displacement than about 14% of Yamaha models.
775 mm — taller than about 35% of Yamaha models.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
1,839
2,082
12% below average.
795
823
3% below average.
1,030
1,172
12% below average.
1,240
1,416
12% below average.
775
793
Close to average.
265
181
47% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 70/100-17 |
|---|---|
| Rear tire size | 90/100-14 |
| Front tire width | 70 mm |
| Front tire aspect ratio | 100% |
| Front rim diameter | 17 in |
| Rear tire width | 90 mm |
| Rear tire aspect ratio | 100% |
| Rear rim diameter | 14 in |
| Power-to-weight ratio | 0.132 hp/kg |
| Power-to-weight | 132.4 hp/tonne |
| Specific power | 79.2 hp/L |
| Bore/stroke ratio | 1.00:1 (Square) |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 123.7 cc (7.55 cu in) |
| Power | 9.8 hp (7.2 kW) @ 8,000 rpm |
| Torque | 9.9 Nm (1.0 kgf-m or 7.3 ft.lbs) @ 6,500 rpm |
| Bore × stroke | 54.0 x 54 mm (2.1 x 2.1 inches) |
| Compression ratio | 10.0:1 |
| Cooling system | Air |
| Fuel control | Single Overhead Cams (SOHC) |
Chassis and suspension
| Front wheel travel | 180 mm (7.1 inches) |
|---|---|
| Rear wheel travel | 160 mm (6.3 inches) |
Brakes, wheels and tires
| Front brakes | Expanding brake |
|---|---|
| Rear brakes | Expanding brake |
| Front tire | 70/100-17 |
| Rear tire | 90/100-14 |
Dimensions and weight
| Dry weight | 74 kg (163.1 lb) |
|---|---|
| Seat height | 775 mm (30.5 inches) |
| Overall length | 1,839 mm (72.4 inches) |
| Overall width | 795 mm (31.3 inches) |
| Overall height | 1,030 mm (40.6 inches) |
| Wheelbase | 1,240 mm (48.8 inches) |
| Ground clearance | 265 mm (10.4 inches) |
Performance
| Power/weight ratio | 0.1324 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.