Harley-Davidson Harley Davidson FXDF Dyna Fat Bob (2008) vs Triumph Rocket 3 R 221 Special Edition (2022) vs BMW F 800GS (2011)
Comparison technical specifications
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| Make: | Harley-Davidson | Triumph | BMW |
| Model: | Harley Davidson FXDF Dyna Fat Bob | Rocket 3 R 221 Special Edition | F 800GS |
| Years: | 2008 | 2022 | 2011 |
| 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 | Four stroke, inline 3-cylinder, DOHC | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 1584 cc / 96 cu-in | 2458 cc / 150 cub in | 798 cc / 47.7 cub-in |
| Bore x Stroke: | 95.3 x 111.1 mm | 110.2 x 85.9 mm | 82 x 75.8 mm |
| Compression Ratio: | 9.2:1 | 10.8:1 | 12.0:1 |
| Induction: | Electronic Sequential Port Fuel Injection (ESPFI) | Ride-by-Wire, fuel injected | Electronic intake injection, ∅45mm throttle bodies |
| Ignition: | Single-fire, non-wasted, map-controlled spark ignition | Digital inductive type via electronic engine management | Knock control and oxygen sensors. |
| Starting: | Electric | Electric | Electric |
| Max Torque: | 124.7 Nm / 92 ft/ lbs. @ 3000 rpm | 221 Nm / 163 ft-lb @ 4000 rpm | 80 Nm / 8.2 kgf-m / 59 lb-ft @ 5750 rpm |
| Clutch: | Multi-plate, wet | Wet, multi-plate hydraulically operated, torque assist | Multiplate-plate in oil bath |
| Transmission: | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Belt | Shaft, bevel box | Chain |
| Frame: | Mild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded | Full aluminum frame | Tubular frame in steal partly carrying the engine |
| Front Suspension: | 49 mm with polished aluminum fork triple clamp and dual-rate springs | Showa 47mm upside-down 1+1 cartridge front forks, compression and rebound adjuster | 43mm Marzocchi. Upside down forks |
| Rear Suspension: | Coil over shock | Fully adjustable Showa piggyback reservoir RSU with remote hydraulic preload adjuster | Double strut swing arm aluminium coast in one piece |
| Front Brakes: | 2x 299mm disc 4 piston caliper | 2x 320 mm discs with Brembo M4.30 Stylema 4-piston radial monobloc calipers | 2 x ∅300mm discs, 4 piston calipers |
| Rear Brakes: | Single 292mm disc 2 piston caliper | Single 300mm disc, Brembo M4.32 4-piston monobloc caliper | Single ∅265mm disc, 2 piston caliper |
| Front Tyre: | D427F 130/90B16 67H | 150/80 R17 V | 90/90 - 21 54V |
| Rear Tyre: | D427 180/70B16 77H | 240/50 R16 V | 150/70 - 17 69V |
| Rake: | 29° | 27.9° | 26° |
| Trail: | 125 mm / 4.9 in | 134.9 mm / 5.3 in | 117 mm / 9.1 in |
| Dimensions: | Length 2329.9 mm / 91.7 in width 889.76 mm / 35.0 in Height 1131.82 mm / 44.5 in | Length: 2365 mm / 93.1 in Width: 889 mm / 35 in Height: 1065 mm / 41.9 in | Length 2320 mm / 91.3 in Width 945 mm / 37.2 in (incl. mirrors) Height 1350 mm / 53.1 in (excl. mirrors) |
| Seat Height: | Laden2 663 mm / 26.1 in Unladen 686 mm / 27.0 in | 773 mm / 30.4 in | 880 mm - 850 mm / 34.6 in. - 33.5 in. |
| Dry Weight: | 303.7 kg / 7 lbs | 291 kg / 641.5 lbs | 177.8 kg / 392 lbs |
| Fuel Capacity: | 18 9 Litres / 5.0 US gal | 18 Litres / 4.76 US gal | 16 Litres / 4.2 US gal. |