Harley-Davidson Harley Davidson FXDF Dyna Fat Bob (2008) vs Triumph Rocket 3 R 221 Special Edition (2022)
Comparison technical specifications
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| Make: | Harley-Davidson | Triumph |
| Model: | Harley Davidson FXDF Dyna Fat Bob | Rocket 3 R 221 Special Edition |
| Years: | 2008 | 2022 |
| 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 |
| Capacity: | 1584 cc / 96 cu-in | 2458 cc / 150 cub in |
| Bore x Stroke: | 95.3 x 111.1 mm | 110.2 x 85.9 mm |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 9.2:1 | 10.8:1 |
| Induction: | Electronic Sequential Port Fuel Injection (ESPFI) | Ride-by-Wire, fuel injected |
| Ignition: | Single-fire, non-wasted, map-controlled spark ignition | Digital inductive type via electronic engine management |
| Starting: | Electric | Electric |
| Max Torque: | 124.7 Nm / 92 ft/ lbs. @ 3000 rpm | 221 Nm / 163 ft-lb @ 4000 rpm |
| Clutch: | Multi-plate, wet | Wet, multi-plate hydraulically operated, torque assist |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Belt | Shaft, bevel box |
| Frame: | Mild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded | Full aluminum frame |
| 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 |
| Rear Suspension: | Coil over shock | Fully adjustable Showa piggyback reservoir RSU with remote hydraulic preload adjuster |
| Front Brakes: | 2x 299mm disc 4 piston caliper | 2x 320 mm discs with Brembo M4.30 Stylema 4-piston radial monobloc calipers |
| Rear Brakes: | Single 292mm disc 2 piston caliper | Single 300mm disc, Brembo M4.32 4-piston monobloc caliper |
| Front Tyre: | D427F 130/90B16 67H | 150/80 R17 V |
| Rear Tyre: | D427 180/70B16 77H | 240/50 R16 V |
| Rake: | 29° | 27.9° |
| Trail: | 125 mm / 4.9 in | 134.9 mm / 5.3 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 |
| Wheelbase: | 1619.7 mm / 63.7 in | 1677 mm / 66 in |
| Seat Height: | Laden2 663 mm / 26.1 in Unladen 686 mm / 27.0 in | 773 mm / 30.4 in |
| Dry Weight: | 303.7 kg / 7 lbs | 291 kg / 641.5 lbs |
| Fuel Capacity: | 18 9 Litres / 5.0 US gal | 18 Litres / 4.76 US gal |