Specification sheet — Yamaha
Yamaha WR155R specifications
Yamaha's 155 cc dual-sport, with an 880 mm seat and 21/18-inch wheels.
- Displacement
- 155.1 cc
- Peak power
- 12.3 kW/10,000 rpm
- Peak torque
- 14.3 N·m/6,500 rpm
- Curb weight
- 134 kg
- Seat height
- 880 mm
- Fuel tank
- 8.1 L
Overview
The published sheet lists a 155.09 cc engine, peak power of 12.3 kW/10,000 rpm, peak torque of 14.3 N·m/6,500 rpm. It carries a curb weight of 134 kg, an 880 mm seat height and an 8.1 L tank.
On the published figures it works out to 9.2 kW per 100 kg, above the median for the other 5 trail bikes in this database (7.8 kW per 100 kg).
Market and trim notes
This sheet covers the Yamaha WR155R 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 SOHC, 4 Valve, VVA |
|---|---|
| Displacement | 155.09 cc |
| Bore × stroke | 58.0 x 58.7 mm |
| Compression ratio | 11.6 : 1 |
| Cooling | Liquid derived |
| Fuel system | Fuel Injection |
| Maximum power | 12.3 kW/10,000 rpm |
| Maximum torque | 14.3 N·m/6,500 rpm |
| Starting | Elektrik |
| Ignition | TCI/Transistor |
| Lubrication | Basah |
| Oil capacity | 1.10 L (Total); 0.85 L (Berkala); 0.95 L (Ganti Filter Oli) |
Transmission and final drive
| Transmission | Manual |
|---|---|
| Clutch | Tipe Multi-Plate Basah |
| Gear pattern | 1-N-2-3-4-5-6 |
| Final drive | Chain derived |
Chassis, suspension and brakes
| Frame | Semi Double Cradle |
|---|---|
| Front suspension | Telescopic 41 mm |
| Rear suspension | Monoshock |
| Front brake | 240 mm Wave disc |
| Rear brake | 220 mm Wave disc |
| Front tyre | 2.75-21 45P |
| Rear tyre | 4.10-18 59P |
Dimensions, weight and capacity
| Length × width × height | 2145 x 840 x 1200 mm |
|---|---|
| Wheelbase | 1430 mm |
| Ground clearance | 245 mm |
| Seat height | 880 mm |
| Curb weight | 134 kg |
| Fuel tank | 8.1 L |
What the numbers mean
The 880 mm seat is tall, in dual-sport territory; inseam matters more here than on a road bike.
At 134 kg it is manageable at walking pace but heavy enough to notice on a slope.
The 8.1 L tank is large enough for weekend distances without planning every fuel stop. The manufacturer does not publish a consumption figure, so this page does not quote a range.
Tyres are 2.75-21 45P front and 4.10-18 59P rear. Check that your local shop stocks both before a long trip.
Closest alternatives
| Model | Capacity | Power | Torque | Weight | Seat |
|---|---|---|---|---|---|
| Honda CRF150L | 149.2 cc | 9.51 kW / 8,000 rpm | 12.43 N·m / 6,500 rpm | 122 kg | 869 mm |
| Kawasaki KLX150 | 144 cc | 8.6 kW (12 PS) / 8,000 rpm | 11.3 N·m (1.2 kgf·m) / 6,500 rpm | 115 kg | 830 mm |
| Honda CT125 Hunter Cub | 124 cc | 6.76 kW / 6,250 rpm | 10.9 N·m/4,750 rpm | 116 kg | 800 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.
- After water crossings or dusty tracks, check the air filter and chain first. Dirt reaches both before it reaches the oil.
- Inspect the brake pads after muddy rides; grit embedded in a pad wears a disc faster than normal road use.
Source and verification
Figures are taken from Yamaha Motor Indonesia, the Indonesian distributor, on 13 November 2026.
Source page: yamaha-motor.co.id/product/wr155r/.
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.
