Specification sheet — Yamaha
Yamaha MT-25 specifications
The MT-25 is the naked 250 cc parallel twin, sharing the R25 engine and tank.
- Displacement
- 249.6 cc
- Peak power
- 26.4 kW/12,000 rpm
- Peak torque
- 22.6 N·m/10,000 rpm
- Curb weight
- 169 kg
- Seat height
- 780 mm
- Fuel tank
- 14 L
Overview
The published sheet lists a 249.55 cc engine, peak power of 26.4 kW/12,000 rpm, peak torque of 22.6 N·m/10,000 rpm. It carries a curb weight of 169 kg, a 780 mm seat height and a 14 L tank.
On the published figures it works out to 15.6 kW per 100 kg, above the median for the other 5 naked bikes in this database (10.6 kW per 100 kg).
Market and trim notes
This sheet covers the Yamaha MT-25 as listed in the Indonesian distributor’s current catalogue. Market-specific equipment can differ from the same nameplate in another country, so the figures are not interchangeable.
Full specification
Every row below is a published figure. Rows the manufacturer does not publish are marked rather than estimated.
Engine and performance
| Engine type | Pendingin Cairan, 4-Langkah DOHC, 4 valve |
|---|---|
| Displacement | 249.55 cc |
| Bore × stroke | 60.0 x 44.1 mm |
| Compression ratio | 11.6 : 1 |
| Cooling | Liquid derived |
| Fuel system | Fuel Injection |
| Maximum power | 26.4 kW/12,000 rpm |
| Maximum torque | 22.6 N·m/10,000 rpm |
| Starting | Elektrik |
| Ignition | TCI |
| Lubrication | Basah |
| Oil capacity | 2.50 L (Total); 2.00 L (Berkala); 2.30 L (Ganti Filter Oli) |
Transmission and final drive
| Transmission | Manual |
|---|---|
| Clutch | Tipe multi-plate basah, Assist & slipper clutch |
| Gear pattern | 1-N-2-3-4-5-6 |
| Final drive | Chain derived |
Chassis, suspension and brakes
| Frame | Diamond |
|---|---|
| Front suspension | Teleskopik Fork (Inverted) |
| Rear suspension | Linkless Monoshock |
| Front brake | Single Disc Brake |
| Rear brake | Single Disc Brake |
| Front tyre | 110/70-17M/C (54S) |
| Rear tyre | 140/70-17M/C (66S) |
Dimensions, weight and capacity
| Length × width × height | 2,090 x 735 x 1,140 mm |
|---|---|
| Wheelbase | 1,380 mm |
| Ground clearance | 160 mm |
| Seat height | 780 mm |
| Curb weight | 169 kg |
| Fuel tank | 14 L |
What the numbers mean
The 780 mm seat is a middle-of-the-road height: most riders will get the balls of both feet down.
At 169 kg it is a two-person job to move uphill; plan parking before you stop.
The 14 L tank is touring-sized, which matters more on a bike that can sit at highway speed. The manufacturer does not publish a consumption figure, so this page does not quote a range.
Tyres are 110/70-17M/C (54S) front and 140/70-17M/C (66S) rear. Check that your local shop stocks both before a long trip.
Closest alternatives
| Model | Capacity | Power | Torque | Weight | Seat |
|---|---|---|---|---|---|
| Yamaha Vixion | 155.1 cc | 14.2 kW / 10,000 rpm (Vixion R), 12.2 kW / 8,500 rpm (Vixion) | 14.7 N·m / 8,500 rpm (Vixion R), 14.5 N·m / 7,500 rpm (Vixion) | 131 kg (Vixion R), 132 kg (Vixion) | 795 mm |
| Yamaha MT-15 | 155.1 cc | 14.2 kW/ 10,000 rpm | 14.7 N·m/ 8,500 rpm | 133 kg | 810 mm |
| Yamaha XSR155 | 155.1 cc | 14.2 kW/ 10,000 rpm | 14.7 N·m/ 8,500 rpm | 134 kg | 810 mm |
Nearest alternatives by category and capacity in this database. These are published figures, not a road test or a recommendation.
Ownership and maintenance notes
- Clean and lubricate the chain at short intervals in rain or dust, and check slack with the bike on its side stand. A loose chain wears sprockets quickly; a tight one loads the output bearing.
- Check tyre pressures cold. On a light bike a few psi matters more than it does on a car, and it changes both steering and tyre life.
- Liquid cooling adds a coolant level and condition check. Do it when the engine is cold, and never open the radiator cap on a hot engine.
Source and verification
Figures are taken from Yamaha Motor Indonesia, the Indonesian distributor, on 13 November 2026.
Source page: yamaha-motor.co.id/product/mt25/.
Cooling, final drive is inferred from the published layout rather than printed as a separate field.
Wording is quoted as published; spacing and unit symbols are normalised. Specification databases go stale: if a figure here differs from the current distributor page, the distributor page wins, and this sheet records what was published on the verification date.
