| MODEL | VELOCETTE K, KT, KS, KE, KES, KN, KNS 1925 - 1930 |
| Year | 1925 - 1930 |
| 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 | 6:1 |
| Cooling System | Air |
| Max Power | — |
| Max Torque | — |
| Ignition | Coil |
| Induction | Amal carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 3-speed |
| Clutch | Wet multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Open frame, engine as stressed member |
| Front Suspension | Webb fork with two friction dampers |
| Rear Suspension | Rigid (spring-loaded seat) |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 112.5 kg / 248 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00 x 19 in |
| Rear Tyre | 3.00 x 19 in |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The first generation of Velocette's overhead-camshaft 350 singles. The K and KT were the touring versions, the KS a mildly tuned sports bike, the KE/KES economy models and the KN/KNS cheaper models with a modified big end and saddle tank. They set up the reputation that led to the KSS and KTT racers.
