Back to Bike FinderYears: 1967 · 1966
1966Sportbike
Triumph Bonneville T120TT
Key specifications
Engine
649 cc
Power
52 HP
Weight
165 kg
Fuel type
petrol
Fuel capacity
2.5 L
Transmission
4-speed
Seat height
31 mm
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)
Technical details
Source specification data
- Make
- Triumph
- Model
- Bonneville T120TT
- Category
- Sport
- Starter
- Kick
- Electrical
- Lucas RM19 alternator, 12-volt electrics
- Color Options
- Red/white
- Power
- 52.00 HP (38.0 kW)) @ 6500 RPM
- Clutch
- Multi-plate, wet
- Gearbox
- 4-speed
- Ignition
- AC energy transfer (ET)
- Top Speed
- 185.0 km/h (115.0 mph)
- Driveline
- Constant-mesh, right-foot shift
- Fuel System
- Carburettor. Amal monobloc carburettor
- Bore X Stroke
- 71.0 x 82.0 mm (2.8 x 3.2 inches)
- Compression
- 11.0:1
- Displacement
- 649.00 ccm (39.60 cubic inches)
- Cooling System
- Air
- Engine Details
- Twin, four-stroke
- Transmission Type Final Drive
- Chain
- Dry Weight
- 165.0 kg (363.8 pounds)
- Seat Height
- 775 mm (30.5 inches) If adjustable, lowest setting.
- Fuel Capacity
- 9.46 litres (2.50 gallons)
- Ground Clearance
- 127 mm (5.0 inches)
- Power Weight Ratio
- 0.3152 HP/kg
- Rake
- 28.0°
- Seat
- Dual seat
- Wheels
- Wire spoked
- Rear Tyre
- 4.00-18
- Frame Type
- Brazed lug, full-cradle, single downtube
- Front Tyre
- 3.50-19
- Rear Brakes
- Expanding brake (drum brake)
- Front Brakes
- Expanding brake (drum brake)
- Rear Suspension
- Swing arm, 2 Girling dampers
- Front Suspension
- Telescopic fork, hydraulic damping.
- Rear Brakes Diameter
- 178 mm (7.0 inches)
- Front Brakes Diameter
- 203 mm (8.0 inches)
Available colors
Red/white