Specifications - Speed Twin
171
Specifications - Speed Twin
Dimensions, Weights and Performance
A list of model specific dimensions, weights and performance figures is available
from your authorized Triumph dealer, or on the Internet at www. triumph. co. uk.
Payload Speed Twin
Maximum Payload 467 lb (212 kg)
Engine Speed Twin
Type
Liquid cooled parallel twin, 270° firing
angle
Displacement 73.2 cu in (1,200 cc)
Bore x Stroke 3.84 x 3.15 in (97.6 x 80 mm)
Compression Ratio 11:1
Cylinder Numbering Left to right
Cylinder Sequence 1-2
Firing Order 1-2
Starting System Electric starter
Lubrication Speed Twin
Lubrication System Wet sump
Engine Oil Capacities:
Dry Fill 1 US gallon (3.8 liters)
Oil/Filter Change 0.9 US gallons (3.4 liters)
Oil Change Only 0.85 US gallons (3.2 liters)
Cooling Speed Twin
Coolant Type Triumph HD4X Hybrid OAT
Water/Coolant Ratio 50/50 (pre-mixed as supplied by Triumph)
Coolant Capacity 0.41 US gallons (1.558 liters)
Thermostat Opens 190°F (88°C) +/- 35°F (2°C)
Fuel System Speed Twin
Type Electronic fuel injection
Fuel Pump Submerged electronic
Fuel Pressure (nominal) 50.8 lb/in² (3.5 bar)
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