Triumph Speed Twin 5T Specs (Top Speed | Horsepower | Weight)

The Triumph Speed Twin 5T motorcycle specifications include a 498 cc (30.39 cu in) engine and power of 27 hp (19.7 kW) @ 6,300 rpm.

Key specifications

1938, 1939, 1940, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966Model years
498 ccDisplacement
27 hpPower
1,400 mmWheelbase
Model years covered
19381939194019471948194919501951195219531954195519561957195819591960196119621963196419651966
Year-specific specification changes

The 1938 model is treated as the standard specification. Only later model years with a different supplied value are shown below.

Front suspension
19391966Telescopic
Rear suspension
19391966Swingarm with coil-over shocks

How the Triumph Speed Twin 5T compares

This compares the motorcycle with all Triumph models in this specifications database. The blue marker is this model and the grey line is the Triumph database average.

Engine power27 hp
Low 10 hpAverage 87.2 hpHigh 165 hp

About 69% lower than the Triumph database average. Around the 9th percentile across Triumph models.

Displacement498 cc
Low 199 ccAverage 949 ccHigh 2,294 cc

About 48% lower than the Triumph database average. Around the 13th percentile across Triumph models.

This model Triumph database average

Triumph database percentile rankings

Percentiles show where this motorcycle sits across the Triumph specifications database. They are descriptive database rankings, not performance ratings.

Engine power9th

27 hp — more powerful than about 9% of Triumph models with power data.

Displacement13th

498 cc — larger displacement than about 13% of Triumph models.

Mechanical overview

Engine layout snapshot

Twin, four-stroke • 498 cc • 27 hp
Chassis snapshot

Wheelbase 1,400 mm
Chain (final drive)

Additional useful specifications

Specific power 54.2 hp/L

Engine specifications

Engine type Twin, four-stroke
Displacement 498 cc (30.39 cu in)
Power 27 hp (19.7 kW) @ 6,300 rpm
Fuel system Carburettor. Amal
Fuel control Overhead Valves (OHV)
Ignition Battery/ coil
Lubrication Dry sump

Transmission and drivetrain

Final drive Chain (final drive)

Chassis and suspension

Frame Rigid
Front suspension Girder fork
Rear suspension No shocks

Brakes, wheels and tires

Front brakes Expanding brake (drum brake)
Rear brakes Expanding brake (drum brake)

Dimensions and weight

Wheelbase 1,400 mm (55.1 inches)

Other specifications

Seat Dual seat

Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Triumph models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Triumph information before relying on them. Visit the official Triumph website.