| MODEL | TRIUMPH TR25W TROPHY 250 1968 - 1970 |
| Year | 1968 - 1970 |
| Engine Type | Four stroke, single cylinder, OHV, 2 valves per cylinder |
| Displacement / Capacity | 247 cc / 15.1 cu in |
| Bore X Stroke | 67 x 70 mm |
| Compression Ratio | 10.0:1 |
| Cooling System | Air cooled |
| Max Power | 16 kW / 22 hp @ 8200 rpm |
| Max Torque | — |
| Ignition | Battery and coil |
| Induction | 28 mm Amal concentric carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 4-speed |
| Clutch | Wet, multi-disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Swinging arm, dual shocks, coil springs |
| Front Brakes | Drum, internal expanding |
| Rear Brakes | Drum, internal expanding |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 812.8 mm / 32 in |
| Wheelbase | 1346 mm / 53 in |
| Ground Clearance | 216 mm / 8.5 in |
| Dry Weight | — |
| Wet Weight | 158 kg / 348 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.25-18 |
| Rear Tyre | 4.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 14.7 Litres / 3.9 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The TR25W was a small single-cylinder trail and street-scrambler type machine sold under the Triumph name. It offered light weight, generous ground clearance and a modest 22 hp, aimed mainly at the US market.
