Yamaha XS 650 / TX 650A (1975-76) vs Harley-Davidson Harley Davidson FXDC Dyna Super Glide Custom (2011-12) vs Harley-Davidson Harley Davidson FLTRU Road Glide Ultra (2011)
Comparison technical specifications
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| Make: | Yamaha | Harley-Davidson | Harley-Davidson |
| Model: | XS 650 / TX 650A | Harley Davidson FXDC Dyna Super Glide Custom | Harley Davidson FLTRU Road Glide Ultra |
| Years: | 1975-76 | 2011-12 | 2011 |
| Engine: | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. | 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 | Four stroke, V-Twin, Twin Cam 103™ Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder, with Integrated Oil-Cooler |
| Capacity: | 653 cc / 39.8 cu in | 1584 cc / 96 cu-in | 1690 cc / 103.1 cu-in |
| Bore x Stroke: | 75 x 74 mm | 95.3 x 111.1 mm | 98.4 x 111.1 mm |
| Compression Ratio: | 8.4:1 | 9.2:1 | 9.6:1 |
| Cooling System: | Air cooled | Air cooled | Air cooled |
| Induction: | 2 x Mikuni carburetors | Electronic Sequential Port Fuel Injection (ESPFI) | Electronic Sequential Port Fuel Injection (ESPFI) |
| Ignition: | Battery, induction coil | Single-fire, non-wasted, map-controlled spark ignition | Single-fire, non-wasted, map-controlled spark ignition |
| Starting: | Electric and kick | Electric | Electric |
| Max Torque: | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm | 124.7 Nm / 92 ft/ lbs. @ 3000 rpm | 135 Nm / 100 ft/lb @ 3250 rpm |
| Transmission: | 5 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Belt | Belt |
| Front Suspension: | Telescopic forks | 49 mm with polished aluminum fork triple clamp and dual-rate springs, | 41.3 mm telescopic, cartridge-style damping |
| Rear Suspension: | Dual shock absorbers | Coil over shock , | Short, air-adjustable shock |
| Front Brakes: | Single disc | Single 300mm disc 4 piston caliper | 2x 292mm disc 4 piston caliper |
| Rear Brakes: | Drum | Single 292mm disc 4 piston caliper | Single 292mm disc 4 piston caliper |
| Front Tyre: | 3.50H-19 4PR | 100/90-19 57H | BW 130/80B17 65H |
| Rear Tyre: | 4.00H-18 4PR | 160/70B17 73V | BW 180/65B16 81H |
| Dimensions: | Length: 2179 mm / 85.8" Width: 899 mm / 35.4" Height: 1161 mm / 45.7" | Length 2364.0 mm / 93.1 in Width 921.0 mm / 36.3 in Height 1194.0 mm / 47.0 in | Length 2525 mm / 99.4 in. |
| Wheelbase: | 1435 mm / 56.5" | 1640.0 mm / 64.6 in | 1630 mm / 64.1 in |
| Ground Clearance: | 150 mm / 5.5" | 142 mm / 5.6 in | 125 mm / 4.9 in |
| Dry Weight: | 191 kg / 420 lbs | 291 kg / 641 lbs | 402.8 kg / 888 lbs |
| Fuel Capacity: | 15 Litres / 4.0 US gal | 18 2 Litres / 4.8 US gal | 22.7 Litres / 6.0 US gal |