Spec Sheet
The information below is specific to the Triumph (Meriden) - T120R Bonneville 68, showing anything for service information to the amount of fork oil or even the tyre pressures. If you would like to contribute any missing information, please use the edit link below.
Back.Bike Info
CC:
650
Service
Chain Freeplay mm:
14
Coolant:
Air
Engine Oil Grade SAE:
20w50
Engine Oil quantity (litres):
2.6
Fork oil grade:
Telescopic Fork oil
Front Fork Oil cc (left leg):
200
Front Fork Oil cc (right leg):
200
Gearbox Oil grade:
Hypoid 80/90
Gearbox Oil Litres:
0.57
Idle Speed (rpm):
1000 hot
Points Gap mm:
.0015\'
Spark Plugs Gap (mm):
.0025\'
Valve Clearance Cold - Exhaust:
.004\'
Valve Clearance Cold - Inlet:
.002\'
Brakes
Front:
Drum
Rear:
Drum
Front Drum Size:
8\'
Front-Pistons-per-caliper:
T/L/S
Rear-Pistons-per-caliper:
S/L/S
Dimensions
Fuel Capacity:
4 Gallon (uk)
Electrics
Voltage:
12v
Battery:
Yuasa YB7L-B
Bulb-Headlight:
45/40w
Charging System:
Lucas Alternator
Ignition:
Battery/Coil
Main Fuse:
35A
Spark Plugs:
Champion N3
Engine
Type:
Air Cooled 4 Stroke OHV Parallel Twin
Bore x Stroke:
71 x 82mm
Carburation:
2x30mm Amal Concentric Mk1
Carburation Main Jet:
190
Compression Ratio:
9:1
Displacement:
649cc
Fuel Minimum Octane Rating:
97
No. of Valves:
4 - 2 valves per cylinder
Pilot Screw Setting:
1.5 +/-
Red line RPM:
6500
Starting:
Kick
Valve Train:
Pushrod
Transmission
Chain type:
530
Clutch Type:
wet multi plate
Gearchange Pattern:
1N234
Sprocket front:
19
Sprocket rear:
46
Transmission:
4 speed
Misc.
Colour Options:
1969-olympic flame/silver.1970-astral red/silver.
Exhaust:
2into2 with balance pipe. Burgess Silencers.
Frame:
tubular twin cradle
Motorcycle Style:
Sports/Touring
Place of Manufacture:
Meriden Birmingham UK
Power
Max Power Output:
47 bhp
Standing 1/4 mile:
13 secs.
Top Speed:
110 -115mph
Suspension
Front:
Telescopic Forks
Rear:
Swing arm/Twin shock Girling exposed springs
Tyres
Front:
Dunlop K70 3.25x19 (Tubed)
Rear:
Dunlop K70 4.00x18 (Tubed)
Wheels
Front:
Dunlop WM2x19
Rear:
Dunlop WM3x18
Add information to the model
All information presented on the website is given to the best of our knowledge at the given time. All information is intended to only as a guide. A major Japanese manufacturer's quote:
We reserve the right to vary our specification with or without notice, and as such time and in such manner as we think fit.