| MODEL | TRIUMPH TS8-1 PROTOTYPE 1981 |
| Year | 1981 |
| Engine Type | Parallel twin, Weslake-developed 8-valve head |
| Displacement / Capacity | — |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | Adjustable |
| Front Brakes | Twin discs |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
A one-off 1981 touring prototype from the last Meriden days, intended to rival the BMW R100RT. It combined the parallel twin with a Weslake 8-valve head, alloy wheels, twin discs and a full fairing styled by Ian Dyson. It never reached production because the 50 orders needed for a limited run did not come.
