MV Agusta 125 Turismo (1948-49) vs Ducati 125 Sport (1965-67) vs Harley-Davidson Harley Davidson XL 1200R Sportster Roadster (2016-17) vs BMW R 1200GS Adventure (2009) vs KYMCO Kymco Quannon 125 (2009-10) vs Harley-Davidson Harley Davidson XL 1200X Forty-Eight (2012)
Comparison technical specifications
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| Make: | MV Agusta | Ducati | Harley-Davidson | BMW | KYMCO | Harley-Davidson |
| Model: | 125 Turismo | 125 Sport | Harley Davidson XL 1200R Sportster Roadster | R 1200GS Adventure | Kymco Quannon 125 | Harley Davidson XL 1200X Forty-Eight |
| Years: | 1948-49 | 1965-67 | 2016-17 | 2009 | 2009-10 | 2012 |
| Engine: | Two stroke, single cylinder | Four stroke, single-cylinder, OHC, bevel gear driven | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder | Four stroke, single cylinder, OHC, 4 valves | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. |
| Capacity: | 125 cc / 7.6 cu-in | 124.4 cc / 7.6 cu in | 1202 cc / 73.4 cub in. | 1170 cc / 71.4 in. | 124 cc / 7.6 cu-in | 1199 cc / 73.2 cu in. |
| Bore x Stroke: | 53 x 56 mm | 55.2 x 52 mm | 88.9 x 96.8 mm | 101 x 73 mm | 57 x 48.8 mm | 88.8 x 96.8 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled | Air/oil cooled | Air/oil cooled | Air cooled |
| Compression Ratio: | 6.2:1 | 8.0:1 | 10.0:1 | 11.0:1 | 9.7:1 | |
| Induction: | 16 mm Carburettor | Dell'Orto UB20BS carburetor | Electronic Sequential Port Fuel Injection (ESPFI) | Electronic intake pipe injection/digital engine management: BMS-K with overrun fuel cut off, dual ignition | Electronic Sequential Port Fuel Injection (ESPFI) | |
| Ignition: | Flywheel magneto | Battery and coil, 6V 40W generator | Digital CDI | BMS-K | CDI | Digital CDI |
| Starting: | Kick | Kick | Electric | Electric | Electric | Electric |
| Transmission: | 3 Speed | 4 Speed | 5 Speed | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Belt | Shaft | Chain | Belt |
| Front Suspension: | Girder forks (telescopic fork on Lusso) | Hydraulically damped telescopic forks, Marzocci | 43 mm inverted front forks with premium cartridge dampening technology and triple clamp design | Telelever, stanchion ∅41mm, central spring strut, spring preload 9 times mechanically adjustable. | Telescopic forks | ∅39mm Fork |
| Rear Suspension: | Swingarm with mechanical shocks | Swingarm, dual shocks, 3-way adjustable | Premium emulsion technology rear shocks with screw style pre-load adjustment | Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever, WAD strut (travel-related damping), spring pre-load hydraulically adjustable to continuously variable levels by means of handwheel, rebound damping adjustable. | Singe shock | Coil-over; preload dual-adjustable |
| Front Brakes: | 125mm Drum | Drum | 2x 300mm floating discs, 2 piston caliper | 2 x 305mm discs, 4 piston caliper | Single 276mm disc 4 piston caliper | Single ∅300mm disc, 2 x ∅38mm piston calipers |
| Rear Brakes: | 125mm Drum | Drum | Single 292mm disc, 1 piston caliper | Single 265 mm disc, 2 piston caliper | Single 225mm disc 2 piston caliper | Single ∅300mm disc, 2 x ∅38mm piston calipers |
| Front Tyre: | 2.75-19 | 2.50 - 17 CEAT | 120/70R19 M/C | 110/80 ZR19 | 110/80-17 | MT90B16 |
| Rear Tyre: | 3.00-19 | 2.75 - 17 CEAT | 150/70R18 M/C | 150/70 ZR17 | 140/70-17 | 150/80-B16 |
| Fuel Capacity: | 12 Litres / 3.1 US gal | 16 L / 4.2 US gal / 3.5 Imp gal | 12.5 Litres / 3.3 US gal | 33 Litres / 8.7 US gal | 13.7 L / 3.6 US gal |