| General |
| Year | 2009 | 2026 |
| Make Model | Buell 1125R | KTM 990 RC-R |
| Dimensions |
| Seat Height | 775 mm / 30.5" | 845 mm / 33.3 in |
| Wheelbase | 1384 mm / 54.5" | 1481 mm / 58.3 in |
| Ground Clearance | 114 mm / 4.5" | 163 mm / 6.4 in |
| Length | 1996 mm / 78.6" | - |
| Width | 716 mm / 28.2" | - |
| Weights & Capacities |
| Wet Weight (kg) | - | 195 |
| Dry Weight (kg) | 170 | - |
| Dry Weight | 170 kg / 375 lbs | - |
| Fuel Capacity | 21.2 L / 5.6 US gal | 15.7 litres / 4.1 US gal |
| Wet Weight | - | 195 kg 430 lbs |
| Performance |
| Top Speed | 243 km/h / 151 mph | - |
| Max Power | 109 kW / 146 hp @ 9800 rpm | 128.2 hp / 94.3 kW @ 9500 rpm |
| Max Torque | 111 Nm / 11.3 kgf-m / 81.9 ft.lbs@ 9000 rpm | 103 Nm / 75.9 lb-ft @ 6750 rpm |
| Standing Start ¼ Mile | 11.0 sec | - |
| Engine |
| Displacement | 1125 cc / 68.7 cu in | 947 cc / 57.8 cu-in |
| Engine Detail | Four stroke, 72° V-Twin | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder |
| Bore x Stroke | 103 x 67.5 mm | 92.5 x 70.4 mm |
| Compression Ratio | 12.3:1 | 13.5:1 |
| Cooling System | Liquid cooled | Liquid cooled with water/oil heat exchanger |
| Emissions | - | EURO 5+ |
| Engine Management | - | Bosch EMS with RBW |
| Fuel Induction | Dual Ø61 mm downdraft throttle Bbodies, DDFI III Fuel Injection System | 46mm DKK Dellorto throttle body |
| Lubrication | - | Forced oil lubrication with 2 oil pumps |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | - | PASC slipper clutch, cable operated |
| Final Drive | Belt | Chain 520 X-ring, 16:43 |
| Gear Ratios | 1st 2.462 / 2nd 1.750 / 3rd / 1.381 / 4th 1.174 / 5th 1.042 / 6th 1.00 | - |
| Primary Drive | - | 42:76 |
| Transmission / Drive | 6 Speed | 6-Speed |
| Chassis |
| Frame Type | Aluminium frame with fuel in frame. | Chromium-Molybdenum-Steel frame using the engine as stressed element, powder coated |
| Suspension - Front | ø47 mm Showa inverted forks, adjustable compression damping. rebound damping and spring preload. | WP APEX 48, open cartridge, compression & rebound (30 Clicks), preload (3 clicks) |
| Suspension - Rear | 127 mm / 5.0" | Showa® coil over monoshock, adjustable compression damping. rebound damping and spring preload. | WP APEX - Monoshock, compression high-speed (3 turns) low-speed (30 clicks), rebound (30 clicks), preload (10 turns) |
| Rake | 21° | - |
| Trail | 83.8 mm / 3.3" | - |
| Wheel Travel - Front | 120 mm / 4.7" | 147 mm / 5.8 in |
| Wheel Travel - Rear | - | 134 mm / 5.3 in |
| Wheels & Brakes |
| Brakes - Front | ZTL type brake, 6-piston, fixed caliper, Ø375 mm single-sided, inside out, stainless steel, floating rotor | 2 x 320mm discs, radially mounted 4 piston caliper |
| Brakes - Rear | Single Ø240 mm disc, 2 piston floating caliper | Single 240 mm disc, single piston caliper |
| ABS | - | Standard |
| Tyres - Front | 120/70 ZR17, Pirelli Diablo Corsa III | 120/70-ZR 17 |
| Tyres - Rear | 180/55 ZR17, Pirelli Diablo Corsa III | 180/55-ZR 17 |
| Wheels | 6-Spoke ZTL2 cast aluminium | Cast aluminium |
| Wheels - Front | 3.50 x 17" | 3.5 x 17 |
| Wheels - Rear | 5.50 x 17" | 5.5 x 17 |