Buell / EBR Buell X1 Lightning (1999) vs Buell / EBR Buell XR9R Firebolt (2007) vs Buell / EBR Buell XB12Scg Lightning (2007-08) vs Sunbeam Model 90 (1928-33)
Comparison technical specifications
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| Make: | Buell / EBR | Buell / EBR | Buell / EBR | Sunbeam |
| Model: | Buell X1 Lightning | Buell XR9R Firebolt | Buell XB12Scg Lightning | Model 90 |
| Years: | 1999 | 2007 | 2007-08 | 1928-33 |
| Engine: | 45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder. | 45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder. | 45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder. | Single cylinder, four stroke, SOHV |
| Capacity: | 1203 cc / 73.4 cu in | 984 cc / 60 cu in | 1203 cc / 73 cu in | 493 cc / 30.1 cu in |
| Bore x Stroke: | 88.8 x 96.8 mm | 88.9 x 79.4 mm | 88.9 x 96.8 mm | 80 x 98 mm |
| Compression Ratio: | 10.0:1 | 10.0:1 | 10.0:1 | 7.0:1 (Optional 7.5 or 9.0:1) |
| Cooling System: | Air cooled | Air cooled | Air cooled | Air cooled |
| Lubrication: | Dry sump | Dry sump | Dry sump | Wet sump |
| Starting: | Electric | Electric | Electric | Kick |
| Final Drive: | Kevlar belt | Kevlar belt | Belt | Chain |
| Gear Ratios: | 1st 2.69 / 2nd 1.85 / 3rd 1.43 / 4th 1.18 / 5th 1.00:1 | 1st 2.688 / 2nd 1.850 / 3rd 1.433 / 4th 1.181 / 5th 1.000 | 1st 2.649 / 2nd 1.892 / 3rd 1.407 / 4th 1.166 / 5th 1.000 | BT: 1st 10.3 / 2nd 6.9 / 3rd 4.6:1 CT: 1st: 8.4 / 2nd 6.2 / 3rd 4.6:1 |
| Front Suspension: | Ø41 mm Showa upside-down front forks adjustable compression and rebound damping | Showa upside-down forks, adjustable for preload, compression & rebound damping | Showa Ø43 mm inverted forks compression damping, rebound damping and spring preload adjustable | Druid-pattern, girder forks |
| Rear Suspension: | Showa shock absorber under engine adjustable spring preload, compression and rebound damping | Showa shock absorber, adjustable for preload, compression & rebound damping | Showa coil-over monoshock, remote underseat reservoir and adjustable compression damping, rebound damping and spring preload, | Rigid, spring loaded saddle |
| Front Brakes: | Single Ø340 mm disc, 6 piston caliper | ZTL-type brake, 6-piston fixed caliper, Ø375 mm single sided, inside out, stainless steel, floating rotor | ZTL type brake, 6 piston, fixed caliper, Ø375 mm single-sided, inside out, stainless steel, floating rotor | Drum |
| Rear Brakes: | Single Ø230 mm disc, 1 piston caliper | Single Ø230 mm disc, 1 piston caliper | Single Ø240 mm disc, 1 piston floating caliper | Drum |
| Dry Weight: | 200 kg / 440 lbs | 175 kg / 386 lbs | 179 kg / 395 lbs | 143 kg / 315 lbs Racing: 141.5 / 312 lbd |
| Fuel Capacity: | 15.8 L / 4.2 US gal | 14 L / 3.7 US gal | 14 L / 3.7 US gal | 11.4 L / 2.5 Imp gal / 3.0 US gal |
| Top Speed: | 225 km/h / 140 mph | 210.2 km/h / 130.6 mph | 216.2 km/h / 134 mph | 145 km/h / 90 mph |