In 1981, Honda released the XR500R motorcycle with a four-stroke, single-cylinder, SOHC, 4 valve engine with a capacity of 497cc. The bike generates a compression ratio of 8.6:1 and is cooled through air. It features a Keihin 34mm piston valve with CDI ignition and a kickstart function. The maximum power output is 36 hp at 6500rpm, and the maximum torque is 41.4 Nm. The motorcycle has a wet plate clutch with a five-speed transmission and a final drive via chain.
The XR500R’s frame is a welded tubular design with a 37mm Showa front fork offering 8.8 inches of travel, while the rear suspension boasts of a Pro-Link Showa damper that can be adjusted for spring preload and rebound damping with 7.8 inches of travel. The bike features a front drum brake and a rear drum brake with a 3.00-21 front tyre and a 4.10-17 rear tyre.
The motorcycle weighs 123 kg dry and 137 kg wet, with a fuel capacity of 12 litres. The dimensions are 1215mm in height, 2210mm in length, and 875mm in width, with a wheelbase of 1400mm and seat height of 880mm. The ground clearance is 280mm.
The XR500R can attain top speeds up to 148.5 km/h.
Technical specifications:
Make Model: Honda XR500R
| Year | 1981 |
|---|---|
| Engine | Four stroke, single cylinder, SOHC, 4 valve |
| Capacity | 497 cc / 30.3 cu-in |
| Bore x Stroke | 89 x 80 mm |
| Cooling System | Air cooled |
| Compression Ratio | 8.6:1 |
| Induction | 1x Keihin 34 mm (1.34 in) piston valve |
| Ignition | CDI |
| Starting | Kick |
| Max Power | 36 hp / 26.3 kW @ 6500 rpm |
| Max Torque | 41.4 Nm / 4.2 kgf-m / 30 lb-f @ 5500 rpm |
| Clutch | Wet plate |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Frame | Welded tubular |
| Front Suspension | 37 mm Showa forks |
| Front Wheel Travel | 224 mm / 8.8 in |
| Rear Suspension | Pro-link Showa damper, adjustment for spring preload and rebound damping |
| Rear Wheel Travel | 198 mm / 7.8 in |
| Front Brakes | 140 mm drum |
| Rear Brakes | 130 mm drum |
| Front Tyre | 3.00-21 |
| Rear Tyre | 4.10-17 |
| Dimensions | Height 1215 mm / 47.8 in Length 2210 mm / 87.0 in Width 875 mm / 34.4 in |
| Wheelbase | 1400 mm / 55.1 in |
| Seat Height | 880 mm / 34.6 in |
| Ground Clearance | 280 mm / 11.0 in |
| Dry Weight | 123.0 kg / 271.2 lbs |
| Wet Weight | 137 kg / 302.0 lbs |
| Fuel Capacity | 12 Litres / 3.1 US gal |
| Top Speed | 148.5 km/h |
