Harley-Davidson Harley Davidson FLHRC Road King Classic (2011) vs Aprilia RX 125 Six days Model L (1988-90)
Comparison technical specifications
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| Make: | Harley-Davidson | Aprilia |
| Model: | Harley Davidson FLHRC Road King Classic | RX 125 Six days Model L |
| Years: | 2011 | 1988-90 |
| Engine: | Four stroke, 45° V-Twin, Twin Cam 96 vibration isolation-mounted Valves Pushrod-operated overhead valves; w/ hydraulic self-adjusting lifters; two valves per cylinder | Single cylinder, two stroke, Rotax 123 with Gilardoni cylinder/head |
| Capacity: | 1584 cc / 96 cu-in | 124.8 cc / 7.6 cu in |
| Bore x Stroke: | 95.2 x 111.2 mm | 54 x 54.5 mm |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 9.2:1 | 11.5:1 |
| Induction: | Electronic Sequential Port Fuel Injection (ESPFI) | VHSB34 LD carburetor |
| Max Torque: | 124.7 Nm / 92 ft. lbs @ 3000 rpm | 20.6 Nm / 2.1 kgf-m / 15.2 lb-ft @ 10500 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Belt | #520 Chain, 12T to 17T pinion gears, 49 T spur gear |
| Front Suspension: | 41.3 mm telescopic, cartridge-style damping | Marzocci upside down fork |
| Rear Suspension: | Short, air-adjustable shock | Swingarm with single shock absorber, Aprilia Progressive system with compression extension, adjustable, Boge Sachs shock absorber |
| Front Brakes: | 2x 292mm disc 4 piston caliper | Single disc, 250 mm |
| Rear Brakes: | Single 292mm disc 4 piston caliper | Single disc, 220 mm |
| Front Tyre: | 130/90B16 67H | 90/90-21 |
| Rear Tyre: | 180/65B16 81H | 120/90-18 |
| Wet Weight: | 367.4 kg / 810 lbs | 115 kg / 253.5 lbs |
| Fuel Capacity: | 22.7 Litres / 6.0 US gal | 9 L / 2.4 US gal / 2.0 Imp gal |