Harley-Davidson Harley Davidson XL 1200T Superlow (2015) vs BMW R 51/2 (1950-51)
Comparison technical specifications
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| Make: | Harley-Davidson | BMW |
| Model: | Harley Davidson XL 1200T Superlow | R 51/2 |
| Years: | 2015 | 1950-51 |
| Engine: | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
| Capacity: | 1202 cc / 73.4 cub in. | 494 cc / 30.1 cu in. |
| Bore x Stroke: | 88.9 x 96.8 mm | 68 x 68 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 10.0:1 | 6.4:1 |
| Induction: | Electronic Sequential Port Fuel Injection (ESPFI) | 2 x Bing Spezial 1/22/29 and 1/22/30 carburetors |
| Ignition: | Digital CDI | Bosch coil with manual advance by the handlebar lever |
| Starting: | Electric | Kick |
| Transmission: | 5 Speed | 4 Speed |
| Final Drive: | Belt | Shaft |
| Gear Ratio: | 1st 9.004 / 2nd 6.432 / 3rd 4.783 / 4th 3.965 / 5th 3.400:1 | 1st 3.60 / 2nd 2.28 / 3rd 1.70 / 4th 1.30:1 |
| Frame: | Mild steel, tubular frame; circular sections; cast junctions Swingarm Mild steel, rectangular tube section, stamped junctions; MIG welded | Closed double loop steel tubular frame |
| Front Suspension: | 39 mm Forks | Telescopic fork |
| Rear Suspension: | Coil-over, dual-adjustable preload | Spring with coil compression springs and rubber deflection stops |
| Front Brakes: | Single 292 mm disc, 2 piston caliper | ∅200mm Drum, duplex full hub |
| Rear Brakes: | Single 292mm disc, 1 piston caliper | ∅200mm Drum, simplex full hub |
| Front Tyre: | 120/70 ZR-18 59W | 3.50 -19" Metzeler |
| Rear Tyre: | 150/70 ZR-17 69W | 3.50 -19" Metzeler |
| Wet Weight: | 274 kg / 604 lb.s | 185 kg / 407 lbs |
| Fuel Capacity: | 17 Litres / US 4.5 gal | 14 liters / 3.60 US gal |