| MODEL | HONDA CR 500R 1985 |
| Year | 1985 |
| Engine Type | Two stroke, single cylinder, reed valve with power valve |
| Displacement / Capacity | 491.4 cc / 29.9 cu in |
| Bore X Stroke | 89.0 x 79.0 mm |
| Compression Ratio | 6.8:1 |
| Cooling System | Liquid cooled |
| Max Power | 47.5 kW / 64.6 hp @ 6000 rpm |
| Max Torque | 72.2 Nm / 53.3 lb-ft @ 6000 rpm |
| Ignition | CDI |
| Induction | Single 38 mm Keihin flat-slide carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Pre-mix |
| Gear Box | 5-speed |
| Clutch | Wet plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Welded steel tubing |
| Front Suspension | 46 mm Showa telescopic fork, 305 mm / 12.0 in travel |
| Rear Suspension | Showa Pro-Link, adjustable compression / rebound damping, 315 mm / 12.4 in travel |
| Front Brakes | Single disc, 2-piston caliper |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 937 mm / 36.8 in |
| Wheelbase | 1509 mm / 59.4 in |
| Ground Clearance | 320 mm / 12.6 in |
| Dry Weight | 102.1 kg / 225.0 lbs |
| Wet Weight | 108.0 kg / 238.1 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | 5.10-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 9 Litres / 2.38 US gal |
| Fuel Consumption | — |
| Top Speed | — |
For 1985 the CR500R switched to liquid cooling, which brought a clear jump in output and began the 1985-1991 run remembered for brutal low-down torque. The rear brake remained a drum. Graphics changed to red with blue and red decals.
