KTM 990 RC-R (2026) vs Aprilia SR 50 Factory (2015)
Comparison technical specifications
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| Make: | KTM | Aprilia |
| Model: | 990 RC-R | SR 50 Factory |
| Years: | 2026 | 2015 |
| Engine: | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder | Two stroke, single cylinder |
| Capacity: | 947 cc / 57.8 cu-in | 49 cc / 3.0 cu in |
| Bore x Stroke: | 92.5 x 70.4 mm | 39 x 41.35 mm |
| Cooling System: | Liquid cooled with water/oil heat exchanger | Liquid cooled |
| Lubrication: | Forced oil lubrication with 2 oil pumps | Wet sump forced lubrication system with mechanical pump |
| Induction: | 46mm DKK Dellorto throttle body | Electronic direct fuel injection |
| Starting: | Electric | Electric |
| Max Power: | 128.2 hp / 94.3 kW @ 9500 rpm | 4.0 kW / 5.4 hp @ 8500 rpm |
| Max Torque: | 103 Nm / 75.9 lb-ft @ 6750 rpm | 4.7 Nm / 0.48 kgf-m / 3.5 lb-ft @ 8500 rpm |
| Transmission: | 6-Speed | Continuous automatic variator |
| Final Drive: | Chain 520 X-ring, 16:43 | V-belt |
| Frame: | Chromium-Molybdenum-Steel frame using the engine as stressed element, powder coated | Split single cradle frame in high tensile strength steel tube |
| Front Suspension: | WP APEX 48, open cartridge, compression & rebound (30 Clicks), preload (3 clicks) | Telescopic hydraulic fork |
| Front Wheel Travel: | 147 mm / 5.8 in | 76 mm / 3.0 in |
| Rear Suspension: | WP APEX - Monoshock, compression high-speed (3 turns) low-speed (30 clicks), rebound (30 clicks), preload (10 turns) | Engine unit acting as swingarm; frame linkages on two radial silent block mountings |
| Rear Wheel Travel: | 134 mm / 5.3 in | 70 mm / 2.8 in |
| Front Brakes: | 2 x 320mm discs, radially mounted 4 piston caliper | Ø190 mm Stainless steel disc brake with twin opposed pistons |
| Rear Brakes: | Single 240 mm disc, single piston caliper | Ø190 mm Stainless steel disc, racing caliper with twin opposed pistons |
| Wheels: | Cast aluminium | Aluminium alloy |
| Front Tyre: | 120/70-ZR 17 | 130/60-13 |
| Rear Tyre: | 180/55-ZR 17 | 130/60-13 |
| Wheelbase: | 1481 mm / 58.3 in | 1120 mm / 44.1 in |
| Seat Height: | 845 mm / 33.3 in | 820 mm / 32.3 in |
| Fuel Capacity: | 15.7 litres / 4.1 US gal | 7 Litres / 1.9 US gal |