| MODEL | HONDA XR 600R 1985 |
| Year | 1985 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valve RFVC (Radial Four Valve Combustion chamber) |
| Displacement / Capacity | 591 cc / 36.0 cu in |
| Bore X Stroke | 97 x 80 mm |
| Compression Ratio | 9.0:1 |
| Cooling System | Air cooled |
| Max Power | 33.5 kW / 46 hp @ 6000 rpm |
| Max Torque | 51.9 Nm / 38.2 lb-ft @ 5500 rpm |
| Ignition | Solid-state CDI |
| Induction | 2 x 28 mm carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | #520 O-ring sealed chain, 14T / 48T |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 43 mm air-adjustable leading-axle Showa fork, 295 mm / 11.6 in travel |
| Rear Suspension | Pro-Link single Showa shock, aluminium swingarm, 280 mm / 11.0 in travel |
| Front Brakes | Single 256 mm disc, 2 piston caliper |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 955 mm / 37.6 in |
| Wheelbase | 1455 mm / 57.3 in |
| Ground Clearance | 345.5 mm / 13.6 in |
| Dry Weight | 121 kg / 266.8 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 80/100-21 |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | 10.5 Litres / 2.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The XR600R arrived for 1985 as the replacement for the XR500R, with the RFVC single enlarged to 591 cc and still air-cooled with a dry-sump oil system. Early bikes kept twin carburettors, a rear drum brake and a 17-inch rear wheel, with an aluminium swingarm on the Pro-Link rear end. It became the start of a long-running big-bore XR that Honda built until 2000.
