The Honda TMX 125 Alpha motorcycle specifications include a 124.1 cc (7.57 cu in) engine, power of 9.7 hp (7.1 kW) @ 8,000 rpm, a 5-speed gearbox, and a listed weight of 108 kg (238.1 lb).
Key specifications
The 2015 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Honda TMX 125 Alpha compares
This compares the motorcycle with all Honda models in this specifications database. The blue marker is this model and the grey line is the Honda database average.
About 82% lower than the Honda database average. Around the 9th percentile across Honda models.
About 78% lower than the Honda database average. Around the 13th percentile across Honda models.
Very close to the Honda database average. Around the 42nd percentile across Honda models.
About 36% smaller than the Honda database average. Around the 24th percentile across Honda models.
Honda database percentile rankings
Percentiles show where this motorcycle sits across the Honda specifications database. They are descriptive database rankings, not performance ratings.
9.7 hp — more powerful than about 9% of Honda models with power data.
124 cc — larger displacement than about 13% of Honda models.
771 mm — taller than about 42% of Honda models.
8.6 L — larger than about 24% of Honda fuel tanks in this database.
Dimensions compared with Honda average
Each measurement is compared with the average value across Honda models where that dimension is available.
2,037
2,078
Close to average.
778
827
6% below average.
1,068
1,161
8% below average.
1,306
1,431
9% below average.
771
780
Close to average.
163
184
11% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 80/100-18 |
|---|---|
| Rear tire size | 90/90-18 |
| Front tire width | 80 mm |
| Front tire aspect ratio | 100% |
| Front rim diameter | 18 in |
| Rear tire width | 90 mm |
| Rear tire aspect ratio | 90% |
| Rear rim diameter | 18 in |
| Engine oil capacity | 1.00 L (1.06 US qt) |
| Power-to-weight ratio | 0.090 hp/kg |
| Power-to-weight | 89.8 hp/tonne |
| Specific power | 78.2 hp/L |
| Bore/stroke ratio | 1.14:1 (Oversquare) |
Model information
| Category | Allround |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 124.1 cc (7.57 cu in) |
| Power | 9.7 hp (7.1 kW) @ 8,000 rpm |
| Torque | 9.4 Nm (1.0 kgf-m or 6.9 ft.lbs) @ 6,500 rpm |
| Bore × stroke | 56.5 x 49.5 mm (2.2 x 1.9 inches) |
| Cooling system | Air |
| Fuel system | Carburettor |
| Fuel control | Overhead Valves (OHV) |
| Ignition | AC-CDI |
| Starter | Electric & kick |
| Oil capacity | 1.00 L (1.06 US qt) |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Front suspension | Telescopic Fork |
|---|---|
| Rear suspension | Twin shocks |
Brakes, wheels and tires
| Front brakes | Expanding brake (drum brake) |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
| Front tire | 80/100-18 |
| Rear tire | 90/90-18 |
| Wheels | Spoke |
Dimensions and weight
| Dry weight | 108 kg (238.1 lb) |
|---|---|
| Seat height | 771 mm (30.4 inches) |
| Overall length | 2,037 mm (80.2 inches) |
| Overall width | 778 mm (30.6 inches) |
| Overall height | 1,068 mm (42.0 inches) |
| Wheelbase | 1,306 mm (51.4 inches) |
| Ground clearance | 163 mm (6.4 inches) |
Fuel and emissions
| Fuel capacity | 8.60 L (2.27 US gal) |
|---|
Performance
| Power/weight ratio | 0.0895 hp/kg |
|---|
Other specifications
| Color options | Black, blue red |
|---|---|
| Comments | Sold in some Asian contries. |
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 Honda models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Honda information before relying on them. Visit the official Honda website.