Sunbeam Model 90 (1928-33) vs Buell / EBR Buell XR9R Firebolt (2003)
Comparison technical specifications
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| Make: | Sunbeam | Buell / EBR |
| Model: | Model 90 | Buell XR9R Firebolt |
| Years: | 1928-33 | 2003 |
| Engine: | Single cylinder, four stroke, SOHV | 45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder. |
| Capacity: | 493 cc / 30.1 cu in | 984 cc / 60 cu in |
| Bore x Stroke: | 80 x 98 mm | 88.9 x 79.4 mm |
| Compression Ratio: | 7.0:1 (Optional 7.5 or 9.0:1) | 10.0:1 |
| Cooling System: | Air cooled | Air cooled |
| Starting: | Kick | Electric |
| Final Drive: | Chain | Kevlar belt |
| Frame: | Single cradle, steel | Hollow aluminium twin-spar frame doubles as the fuel tank |
| Front Suspension: | Druid-pattern, girder forks | Showa upside-down forks, adjustable for preload, compression & rebound damping |
| Rear Suspension: | Rigid, spring loaded saddle | Showa shock absorber, adjustable for preload, compression & rebound damping |
| Front Brakes: | Drum | ZTL-type brake, 6-piston fixed caliper, Ø375 mm single sided, inside out, stainless steel, floating rotor |
| Rear Brakes: | Drum | Single Ø230 mm disc, 1 piston caliper |
| Wheelbase: | 1359 mm / 53.5" | 1320 mm / 52" |
| Dry Weight: | 143 kg / 315 lbs Racing: 141.5 / 312 lbd | 175 kg / 386 lbs |
| Fuel Capacity: | 11.4 L / 2.5 Imp gal / 3.0 US gal | 14 L / 3.7 US gal |
| Top Speed: | 145 km/h / 90 mph | 210.2 km/h / 130.6 mph |