| MODEL | TRIUMPH TR 6R TROPHY SPORT 1968 |
| Year | 1968 |
| Engine Type | Four-stroke, parallel twin, OHV |
| Displacement / Capacity | 649 cc / 40 cu in |
| Bore X Stroke | 71 x 82 mm |
| Compression Ratio | 9.0:1 |
| Cooling System | Air cooled |
| Max Power | 32 kW / 43 hp @ 6500 rpm |
| Max Torque | — |
| Ignition | Battery and coil |
| Induction | 30 mm Amal concentric carburettor |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4-speed constant mesh |
| Clutch | Wet, multi-plate, cable operated |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Brazed lug, full cradle, single downtube |
| Front Suspension | Telescopic fork, hydraulic damping |
| Rear Suspension | Swingarm, 2 x Girling dampers |
| Front Brakes | 8 in drum |
| Rear Brakes | 7 in drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 793 mm / 31.2 in |
| Wheelbase | 1397 mm / 55 in |
| Ground Clearance | 152 mm / 6.0 in |
| Dry Weight | — |
| Wet Weight | 177 kg / 390 lb |
| WHEEL SPECS | |
| Front Tyre | 3.25 x 19 |
| Rear Tyre | 4.00 x 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 13.2 Litres / 3.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The TR6R Trophy Sport was the road-going version of Triumph's single-carburettor 650 twin in the late pre-oil-in-frame era. It used a conventional brazed-lug cradle frame, drum brakes front and rear and a 4-speed gearbox, giving a light and simple all-rounder.
