Engineered by Velocette for the cross - motocross motorcycle segment, the 1938 Velocette KTT utilizes a 348 cc (21.2 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 27 HP (19.7 kW) at 6,500 rpm. With a specific output of 77.6 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
The 15.14-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 185 km/h (115 mph).
Within MotoLibrary's Velocette archive, this model family spans 13 indexed model years from 1938 to 1950, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
77.6 HP/L
Engine
Displacement348.0 ccm (21.23 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power27.0 HP (19.7 kW)) @ 6500 RPM
Fuel SystemCarburettor
Fuel ControlOverhead Cams (OHC)
CoolingAir
Transmission
ClutchFour speed
Performance
Top Speed185.1 km/h (115.0 mph)
Chassis
Front SuspensionWebb girder forks
Rear SuspensionSwingarm
Wheels & Brakes
Front BrakesExpanding brake (drum brake). Magnesium
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
