Technical specifications
|
| Model: |
CR 450RB |
| Years: |
1981 |
|
Engine:
|
Two stroke, single cylinder, read valve
|
|
Capacity:
|
431 cc / 26.3 cu-in
|
|
Bore x Stroke:
|
85 x 76 mm
|
|
Compression Ratio:
|
7.1:1
|
|
Cooling System:
|
Air cooled
|
|
Exhaust:
|
Expansion chamber
|
|
Lubrication:
|
Pre-mix
|
|
Induction:
|
Single 38mm Keihin flat-slide carburettor
|
|
Ignition:
|
CDI external flywheel
|
|
Starting:
|
Kick
|
|
Max Power:
|
52.9 hp / 39.4 kW @ 6500 rpm
|
|
Max Torque:
|
57.7 Nm / 42.6 lb-ft @ 6000 rpm
|
|
Clutch:
|
Wet plate
|
|
Transmission:
|
4 Speed
|
|
Final Drive:
|
#520 Chain; 14T/54T
|
|
Primary Drive:
|
Straight-cut gears
|
|
Gear Ratio:
|
1st 15.66 / 2nd 11.67 / 3rd 9.18 / 4th 7.63
|
|
Frame:
|
Chrome-moly steel
|
|
Front Suspension:
|
41mm Showa air-adjustable forks with three compression damping adjustments
|
|
Front Wheel Travel:
|
305 mm / 12.0 in
|
|
Rear Suspension:
|
Pro-Link with four compression damping adjustments
|
|
Rear Wheel Travel:
|
312 mm / 12.3 in
|
|
Front Brakes:
|
Drum
|
|
Rear Brakes:
|
Drum
|
|
Front Tyre:
|
3.00-21
|
|
Rear Tyre:
|
5.10-18
|
|
Rake:
|
29.5°
|
|
Trail:
|
4.8 in
|
|
Wheelbase:
|
1507.7 mmmm / 59.4 in
|
|
Seat Height:
|
950 mm / 37.4 in
|
|
Ground Clearance:
|
325 mm / 12.8 in
|
|
Dry Weight:
|
104 kg / 229.2 lbs
|
|
Wet Weight:
|
113 kg / 248 lbs
|
|
Fuel Capacity:
|
9 Litres / 2.38 US gal
|
|
Overview:
|
Pulpmx.com
|