Technical specifications
|
| Model: |
Thruxton Endurance |
| Years: |
1969 |
|
Production:
|
121 units
|
|
Engine:
|
Four stroke, single cylinder, OHV
|
|
Capacity:
|
499 cc / 30.5 cub in
|
|
Bore x Stroke:
|
86 x 86 mm
|
|
Compression Ratio:
|
8:1
|
|
Cooling System:
|
Air cooled
|
|
Lubrication:
|
Dry sump
|
|
Carburetor:
|
Amal 10TT9 Monobloc
|
|
Exhaust:
|
Single
|
|
Spark Plug:
|
Champion N3 or N4
|
|
Ignition:
|
Miller D6 with auto volt regulation
|
|
Battery:
|
6V 60W
|
|
Starting:
|
Kick start
|
|
Max Power:
|
25 kW / 34 hp @ 6200 rpm
|
|
Transmission:
|
4 Speed constant mesh, close ratio
|
|
Gear Ratios:
|
1st 11.2 / 2nd 7.7 / 3rd 5.87 / 4th 4.87:1
|
|
Final Drive:
|
Chain
|
|
Frame:
|
Tubular cradle, rear sub-frame detachable
|
|
Dimensions:
|
Length: 2260 mm / 89.0 in Width: 760 mm / 30.0 in Height: 1130 mm / 44.5 in
|
|
Wheelbase:
|
1365 mm / 53.75 in
|
|
Ground Clearance:
|
165 mm / 6.5 in
|
|
Seat Height:
|
838 mm / 33 in
|
|
Front Suspension:
|
Telescopic fork with hydraulic damping and an offset wheel spindle
|
|
Rear Suspension:
|
Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling
|
|
Front Brakes:
|
7 x 1 in., drum
|
|
Rear Brakes:
|
7 x 1 in., drum
|
|
Front Wheel:
|
WM1 x 21 in
|
|
Rear Wheel:
|
WM3 x 19 in
|
|
Front Tyre:
|
3.00 x 21 Trials Universal
|
|
Rear Tyre:
|
4.00 x 19 Trials Universal
|
|
Dry Weight:
|
170 kg / 375 lbs
|
|
Fuel Capacity:
|
11.35 L / 3 US gal
|
|
Colours:
|
Black with silver tank
|
|
Source:
|
Bonhams
|