Specifications - Bonneville T120 Ace and Diamond
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Specifications - Bonneville T120 Ace and Diamond
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 Bonneville T120 Ace Bonneville T120 Diamond
Maximum Payload 463 lb 463 lb
Engine Bonneville T120 Ace Bonneville T120 Diamond
Type
Liquid cooled parallel twin,
270° firing angle
Liquid cooled parallel twin,
270° firing angle
Displacement 73.2 cu in (1,200 cc) 73.2 cu in (1,200 cc)
Bore x Stroke 3.84 x 3.15 in (97.6 x 80 mm) 3.84 x 3.15 in (97.6 x 80 mm)
Compression Ratio 10:1 10:1
Cylinder Numbering Left to right Left to right
Cylinder Sequence 1-2 1-2
Firing Order 1-2 1-2
Starting System Electric starter Electric starter
Lubrication Bonneville T120 Ace Bonneville T120 Diamond
Lubrication System Wet sump Wet sump
Engine Oil Capacities:
Dry Fill 1 US gallon (3.8 liters) 1 US gallon (3.8 liters)
Oil/Filter Change 0.9 US gallons (3.4 liters) 0.9 US gallons (3.4 liters)
Oil Change Only 0.85 US gallons (3.2 liters) 0.85 US gallons (3.2 liters)
Cooling Bonneville T120 Ace Bonneville T120 Diamond
Coolant Type Triumph HD4X Hybrid OAT Triumph HD4X Hybrid OAT
Water/Coolant Ratio
50/50 (pre-mixed as
supplied by Triumph)
50/50 (pre-mixed as
supplied by Triumph)
Coolant Capacity 0.41 US gallons (1.558 liters) 0.41 US gallons (1.558 liters)
Thermostat Opens 190°F (88°C) +/- 35°F (2°C) 190°F (88°C) +/- 35°F (2°C)
Fuel System Bonneville T120 Ace Bonneville T120 Diamond
Type Electronic fuel injection Electronic fuel injection
Fuel Pump Submerged electronic Submerged electronic
Fuel Pressure (nominal) 50.8 lb/in² (3.5 bar) 50.8 lb/in² (3.5 bar)
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