With forward-mounted foot controls, drag-style handlebar and a sleek, two-up seat, the 2012 Harley-Davidson FXDF Dyna Fat Bob® creates an aggressive riding position that commands respect from the road. Truly fat from start to finish, the Harley-Davidson FXDF Dyna Fat Bob® features a 130 mm wide front tire with a gnarly, robust tread pattern, emphasizing the aggressive character of the “fat custom” ride. Out back, the high-performance, chrome-covered, coil-over shocks showcase the beefy 180 mm wide rear tire and perfectly complement the Fat Bob’s outstanding handling attributes.
2012 Harley-Davidson FXDF Dyna Fat Bob® Specifications and Technical Details
US MSRP Price: Vivid Black $15,349, Solids $15,734 USD
Length 91.7 in. (2329 mm)
Overall Width 35.0 in. (889 mm)
Overall Height 44.5 in. (1130 mm)
- Laden2 26.1 in. (663 mm)
- Unladen 27.0 in. (686 mm)
Ground Clearance 4.9 in. (125 mm)
Rake (steering head) 29°
Fork Angle 28°
Trail 4.9 in. (125 mm)
Wheelbase 63.7 in. (1618 mm)
Tires (Dunlop® Harley-Davidson® Series, bias blackwall front and rear):
- Front – D427F 130/90B16 67H
- Rear – D427 180/70B16 77H
Fuel Capacity 5.0 gal. (18.9 L) (warning light at approximately 0.9 gal.)
Oil Capacity (w/filter) 3.0 qts. (2.8 L)
Transmission Capacity 1.0 qt. (.95 L)
Case Capacity 1.0 qt. (.95 L)
- As Shipped 673 lbs. (305.0 kg)
- In Running Order 706 lbs. (320.0 kg)
- Gross Vehicle Weight Rating 1085 lbs. (492.2 kg)
- Gross Axle Weight Rating:
- Front 390 lbs. (176.9 kg)
- Rear 695 lbs. (315.3 kg)
Engine Air-cooled, Twin Cam 103™
Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
Bore x Stroke 3.875 in. x 4.38 in. (98.4 mm x 111.3 mm)
Displacement 103 cu. in. (1690 cc)
Compression Ratio 9.6:1
Fuel System3 Electronic Sequential Port Fuel Injection (ESPFI)
Air Cleaner Fiberglass Media, washable
Lubrication System Pressurized, dry-sump
Primary Drive Chain, 34/46 ratio
Final Drive Belt, 32/66 ratio
Clutch Multi-plate, wet
Transmission 6-Speed Cruise Drive®
Gear Ratios (overall): U.S.
- 1st 9.311
- 2nd 6.454
- 3rd 4.793
- 4th 3.882
- 5th 3.307
- 6th 2.79
Frame Mild steel, tubular frame; rectangular section backbone; stamped, cast, and forged junctions; forged fender supports; MIG welded
Swingarm Mild steel, rectangular tube sections, stamped junctions; MIG welded
Front Forks 49 mm with polished aluminum fork triple clamp and dual-rate springs
Rear Shocks Fully Covered, Coil-over shock
Wheels4: Machined Aluminum Slotted Disc
- Front 16 in. x 3 in. (406 mm x 76 mm)
- Rear 16 in. x 5 in. (406 mm x 127 mm)
- Caliper Type 4-piston fixed front, and 2-piston torque-free floating rear
- Rotor Type (diameter x width): Patented, uniform expansion rotors (floating, front only)
- Front (dual floating) 11.8 in. x .2 in. (300 mm x 5.1 mm)
- Rear 11.5 in. x .23 in. (292 mm x 5.8 mm)
- Anti-lock Braking System: Available
- Front Wheel 5 in. (127 mm)
- Rear Wheel 2.13 in. (54.102 mm)
Engine Torque5 (per J1349):
- North America 100 ft. lbs. @ 3500 RPM (136 Nm @ 3500 RPM)
Lean Angle (per J1168):
- Right 30°
- Left 31°
Fuel Economy6 (EPA urban/highway test) 42 mpg (5.6 L/100 km)
- Vivid Black
- Big Blue Pearl
- H-D Orange
- Black Denim
Vivid Black $15,349
Battery (per Battery Council International Rating)
Sealed, maintenance-free, 12V, 19-amp/hour, 270 cca
Charging Three-phase, 40-amp system (493W @ 13.5V, 2000 rpm, 540W max power @ 13.5V)
Starting 1.2 kW electric with solenoid shift starter motor engagement
Lights (as per country regulation):
- Headlamp (dual quartz halogen) 55-watt low beam, 60-watt high beam
- Tail/Stop Lights 8W/28W
- Turn Signal Lights 28W self-canceling
- Indicator Lamps: High beam, directional light bar, neutral, low oil pressure, engine diagnostics, turn signals, security system7 (optional), 6-speed, low fuel warnings
Warranty8 24 months (unlimited mileage)
Service Interval9 First 1000 miles (1600 km), every 5000 miles (8000 km) thereafter
1 Vehicles depicted may differ from vehicles manufactured and delivered. Specifications and prices listed may differ from specifications and prices of vehicles manufactured and delivered. All product descriptions (including depictions, specifications, dimensions, measurements, ratings and competitive comparisons) are based on available information at the time of publication. Although such descriptions are believed correct, errors and changes can occur and complete accuracy cannot be guaranteed. Harley-Davidson may make changes at any time to prices and specifications, and may change or discontinue models, without notice and without incurring any obligation. Attention: Vehicles in the configurations shown and many of the accessories described in this catalog may not be available for sale or use in some locations. Please check with your dealer for complete product details and the latest information. All models feature 6-speed transmission (V-Rod® models and Sportster® models are 5-speed) and carbon fiber belt final drive; multi-plate clutch with diaphragm spring in oil bath; and 2-year unlimited mileage warranty.
2 Measurement reflects 180 lb. (81.7 kg) operator weight.
3 Recommended 91 octane or higher fuel (R+M)/2.
4 Standard and optional wheels may vary by country and region.
5 Values shown are nominal. Performance may vary by country and region.
6 The combined fuel economy numbers were derived using a combination of estimated city and highway values. Fuel economy estimates are derived from US EPA exhaust emission certification data on a sample motorcycle from the corresponding family under ideal laboratory conditions. Your actual fuel economy will vary depending on your personal riding habits, road and driving conditions, vehicle condition and maintenance, tire pressure, vehicle configuration (parts and accessories), and vehicle loading (cargo, rider and passenger weight). Break-in mileage may vary.
7 North America security system includes immobilizer; outside North America the security system includes immobilizer and siren.
8 See motorcycle owner’s manual for complete details.
9 Inspections of certain systems and components are required at 2500 mile (4000 km) intervals. See Owner’s Manual for full details.
please go to 2012 Harley-Davidson FXDB Dyna Street Bob to see 2012 Harley-Davidson FXDF Dyna Fat Bob® press release