| MODEL | VELOCETTE KTP, KTS MK I, MK II 1930 - 1940 |
| Year | 1930 - 1940 |
| Engine Type | Four-stroke, single cylinder, overhead camshaft |
| Displacement / Capacity | 348 cc / 21.3 cu in |
| Bore X Stroke | 74 x 81 mm |
| Compression Ratio | 6.5:1 |
| Cooling System | Air |
| Max Power | — |
| Max Torque | — |
| Ignition | Coil with Miller unit |
| Induction | Amal carburettor, twist grip |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 3-speed hand change (KTP); 4-speed foot change (KTS) |
| Clutch | Wet multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Open frame, engine as stressed member (KTP, KTS Mk I); single cradle (KTS Mk II) |
| Front Suspension | Webb fork with two friction dampers |
| Rear Suspension | Spring-loaded seat |
| Front Brakes | 7 in internal expanding drum |
| Rear Brakes | 7 in internal expanding drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 711 mm / 28 in |
| Wheelbase | 1365 mm / 53.75 in |
| Ground Clearance | 121 mm / 4.75 in |
| Dry Weight | 133 kg / 294 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | 8.5 Litres / 2.25 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The KTP was a sporting 350 with twin exhaust ports that proved disappointing, with weak power and an unreliable coil, and was dropped after about a year. Its replacement, the KTS, was a touring model with leg shields and wide mudguards; the Mk II (1936-40) moved to a single cradle frame.
