FXDF Dyna Fat Bob
2009 Harley-Davidson FXDF Dyna Fat Bob Technical Analysis & Specification Breakdown
At the heart of the 2009 Harley-Davidson FXDF Dyna Fat Bob custom - cruiser motorcycle, Harley-Davidson relies on a 1584 cc (96.7 cu in) air-cooled v2, four-stroke powerplant. In factory specification, maximum torque reaches 127 Nm (93.7 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 95.3 x 111.1 mm (3.8 x 4.4 inches) with a 9.2:1 compression ratio.
On the scales, the FXDF Dyna Fat Bob measures 305 kg (672 lbs) dry. Rider ergonomics and chassis geometry center around a 663 mm (26.1 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,620 mm (63.8 in) wheelbase engineered for planted straight-line stability. The 19.3-liter (5.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Harley-Davidson archive, this model family spans 3 indexed model years from 2008 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Black powder-coated engine with polished treatment covers; New low-profile front fender; Bobtail rear fender with chrome supports; Chrome, low-profile fuel tank console; Forward-mounted rider footpegs; Standard passenger footpegs; Stainless steel, internally-wired drag handlebar; “Teardrop” air cleaner assembly; One-piece, two-up Dyna® classic seat; Black mirrors; Dual headlight; Tank medallions; Black powder-coated engine with polished treatment covers; New low-profile front fender; Bobtail rear fender with chrome supports; Chrome, low-profile fuel tank console; Forward-mounted rider footpegs; Standard passenger footpegs; Stainless steel, internally-wired drag handlebar; “Teardrop” air cleaner assembly; One-piece, two-up Dyna® classic seat; Black mirrors; Dual headlight; Tank medallions; Chrome covered low rear shocks with hand-adjustable preload;
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