| MODEL | TRIUMPH TR 25T TRAIL BLAZER 1971 - 1972 |
| Year | 1971 - 1972 |
| 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 | — |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Twin shocks, coil springs |
| Front Brakes | Drum, internal expanding |
| Rear Brakes | Drum, internal expanding |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 20 in |
| Rear Tyre | 18 in |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The Trail Blazer was the trail-oriented 250 single built mainly for the American market, in contrast to the road-biased Street Scrambler sold mostly in Britain. It differed in having a larger front brake, trials-pattern tyres, a high front mudguard, an alloy fuel tank and folding footrests.
