1969 Triumph Bonneville T120R Roadster Specs

motorcycle specs

These are the known mechanical and performance specifications for your 1969 Triumph Bonneville T120R Roadster.

Basic Specs

Year1969
MakeTriumph
ModelTriumph Bonneville T120R Roadster
TypeSport
Cost

Engine

Displacement649.00 ccm (39.60 cubic inches)
Type
DetailsTwin, four-stroke
Max RPM
Compression9.0:1
Bore/Stroke71.0 x 82.0 mm (2.8 x 3.2 inches)
Valves/Cylinder
FuelingCarburettor. Amal Concentric carburettor
IgnitionLucas
Exhaust
Lubrication
CoolingAir

Drivetrain

Gearbox4-speed
Final DriveChain
ClutchMulti-plate, wet
Driveline

Performance

Horespower49.00 HP (35.8 kW)
Torque
Top Speed185.0 km/h (115.0 mph)

Fuel Economy & Polution

Fuel Consumption
Fuel Capacity9.46 litres (2.50 gallons)
Emissions

Chassis

Frame TypeBrazed lug, full-cradle, single downtube
Rake26.0°
Trail
Front SuspensionTelescopic fork, hydraulic damping.
Front Travel
Rear SuspensionSwing arm, 2 Girling dampers
Rear Travel
SeatDual seat, black and gray
Seat Height775 mm (30.5 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance127 mm (5.0 inches)
Wheelbase1,403 mm (55.2 inches)
Dry Weight165.0 kg (363.8 pounds)
Wet Weight

Wheels & Brakes

Front Tire/Tyre3.25-19
Rear Tire/Tyre4.00-18
Front BrakesExpanding brake (drum brake). Twin Leading Shoe
Front Brake Diameter203 mm (8.0 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter178 mm (7.0 inches)
WheelsWire spoked. Dunlop tyres.

Comments

It appears you're interested in specifications for the Triumph Bonneville T120R Roadster. This Sport model is powered by a Twin, four-stroke engine with 649.00 ccm (39.60 cubic inches) of actual displacement before 9.0:1 compression. Fueling is metered via Carburettor. Amal Concentric carburettor allowing this machine to produce its 49.00 HP (35.8 kW) horsepower and torque. According to our records engine heat of the Triumph Bonneville T120R Roadster is moderated by Air. You'll need to get familiar with the 4-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 3.25-19 and the rear is 4.00-18 . The entire package is supported by the frame, Brazed lug, full-cradle, single downtube. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Expanding brake (drum brake). Twin Leading Shoe front brakes and Expanding brake (drum brake) rear brakes. The Triumph Bonneville T120R Roadster was launched in 1969, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.