Harley-Davidson FXDF Dyna Fat Bob, 2009
The massive stature of the Dyna Fat Bob, led by twin headlights braced between polished triple clamps, has an unmistakable street presence. Riding on big tires with an aggressive tread pattern mounted on 16-inch Slotted Cast Aluminum wheels, the Fat Bob is a cool and confident ride. New features include high performance chrome-covered coil-over rear shocks, and silver-faced speedometer with range countdown. The chrome Tommy Gun 2-1-2 exhaust accents the black-and-polished Twin Cam 96 engine. Forward foot controls and flat drag bars create a cool and comfortable ride.
The Harley-Davidson Dyna family has its roots in the factory-custom revolution of the 1970s. These five motorcycles pair Big Twin performance with an extended FX front end. Dyna has always had a reputation for great handling, with loads of attitude that appeals to riders with a strong inclination for independent thinking.
A 1584 cc Twin Cam 96 powertrain with Electronic Sequential Port Fuel Injection (ESPFI) mated to the 6-Speed Cruise Drive transmission cranks out 92 ft.-lbs. of torque at 3000 rpm. Common Dyna characteristics include the under-seat battery box, exposed rear shock absorbers, and a classic Fat Bob fuel tank with console.
New on Dyna for 2009:
Silver-face speedometer with fuel range read-out: The new Dyna speedometer stands out in silver and adds a functional fuel range read-out.
New fuel sender: The speedometer range read-out is the result of a new fuel sender.
Low profile front fender: The gap between tire and fender tightens with the cool look of a new low-profile front fender.
The Harley-Davidson Dyna family has its roots in the factory-custom revolution of the 1970s. These five motorcycles pair Big Twin performance with an extended FX front end. Dyna has always had a reputation for great handling, with loads of attitude that appeals to riders with a strong inclination for independent thinking.
A 1584 cc Twin Cam 96 powertrain with Electronic Sequential Port Fuel Injection (ESPFI) mated to the 6-Speed Cruise Drive transmission cranks out 92 ft.-lbs. of torque at 3000 rpm. Common Dyna characteristics include the under-seat battery box, exposed rear shock absorbers, and a classic Fat Bob fuel tank with console.
New on Dyna for 2009:
Silver-face speedometer with fuel range read-out: The new Dyna speedometer stands out in silver and adds a functional fuel range read-out.
New fuel sender: The speedometer range read-out is the result of a new fuel sender.
Low profile front fender: The gap between tire and fender tightens with the cool look of a new low-profile front fender.
FXDF Dyna Fat Bob features:
Vibration isolated Twin Cam 96 engine
6-speed Cruise Drive transmission
Black powdercoated engine with polished rocker boxes
New silver-faced speedometer with range countdown
New fuel sender
High Performance “Full metal jacket” chrome-covered shock absorbers
Chrome Tommy Gun exhaust with Staggered Dual mufflers
180 mm-16 rear / 130 mm-16 front tires
Cast Aluminum Slotted Disc 16-inch front/rear wheels
Bobtail rear fender
5.1-gallon Fat Bob fuel tank
Drag-style handlebar on black riser
Polished aluminum triple clamps
Black fork lowers and mirrors
28-degree fork angle
Dual headlamps
Forward or mid foot controls
Optional Smart Security System
The Dimensions
Length 91.73 in. (2329.94 mm)
Overall Width 35.03 in. (889.76 mm)
Overall Height 44.56 in. (1131.82 mm)
Seat Height:
• Laden2: 26.10 in. (662.94 mm)
• Unladen: 27.08 in. (687.83 mm)
The Ground Clearance 4.92 in. (124.99 mm)
Rake (steering head) 29°
Fork Angle 28°
Trail 4.92 in. (124.97 mm)
Wheelbase 63.77 in. (1619.76 mm)
Tires (Dunlop® Harley-Davidson Series, bias blackwall front and rear):
• Front – D427F 130/90B16
• Rear – D427 180/70B16
The Fuel Capacity 5 gal. (18.93 L) (warning light at approximately 0.9 gal.)
Oil Capacity (w/filter) 3 qts. (2.84 L)
Transmission Capacity 1 qts. (0.95 L)
Primary Chain
Case Capacity11
1 qts. (0.95 L)
The Weight:
• As Shipped 669.70 lbs. (303.77 kg)
• In Running Order 703 lbs. (318.88 kg)
• Gross Vehicle Weight Rating 1085 lbs. (492.15 kg)
• Gross Axle Weight Rating:
• Front 390 lbs. (176.90 kg)
• Rear 695 lbs. (315.25 kg)
The Engine
Engine3 Air-cooled, Twin Cam 96™
Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
Bore x Stroke 3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)
Displacement3 96 cu. in. (1584 cc)
Compression Ratio 9.2:1
Fuel System9 Electronic Sequential Port Fuel Injection (ESPFI)
Air Cleaner Fiberglass Media, washable
Lubrication System Pressurized, dry-sump
The Drivetrain
Primary Drive Chain, 34/46 ratio
Final Drive10 Belt, 32/66 ratio
Clutch 9-plate, wet
Transmission 6-Speed Cruise Drive®
Gear Ratios (overall): U.S. HDI JPN
• 1st 9.312 9.312 9.030
• 2nd 6.421 6.421 6.266
• 3rd 4.774 4.774 4.630
• 4th 3.926 3.926 3.807
• 5th 3.279 3.279 3.179
• 6th 2.790 2.790 2.706
The Chassis
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
The Wheels4:
• Front- Silver, Solid Disc Cast Aluminum 16 in. x 3.50 in. (406.40 mm x 88.90 mm)
• Rear- Silver, Slotted Disc Cast Aluminum 16 in. x 5 in. (406.40 mm x 127 mm)
The Brakes:
• Caliper Type 4-piston fixed front, and 2-piston torque-free floating rear
• Rotor Type Patented, uniform expansion rotors (floating, front only)
(diameter x width):
• Front (dual floating) 11.80 in. x .20 in. (299.72 mm x 5.08 mm)
• Rear 11.50 in. x .23 in. (292.10 mm x 5.84 mm)
The Suspension Travel:
• Front Wheel 5 in. (127 mm)
• Rear Wheel 3.10 in. (78.74 mm)
The Performance
Engine Torque5 (per SAE J1349):
• North America 92 ft. lbs. @ 3000 rpm (124.75 NM @ 3000 rpm)
Lean Angle (per SAE J1168):
• Right 30°
• Left 31°
The Fuel Economy7
(EPA urban/highway test) 34/53 mpg (6.92/4.44 L/100 km)
The Electric
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 bea
• Tail/Stop Lights 8W/28W (5W/21W)
• Turn Signal Lights 28W (21W) self-canceling
• Indicator Lamps: High beam, directional light bar, neutral, low oil pressure, engine diagnostics, turn signals, security system6 (optional), 6-speed, low fuel warnings
Electric Power Outlet Standard
Vibration isolated Twin Cam 96 engine
6-speed Cruise Drive transmission
Black powdercoated engine with polished rocker boxes
New silver-faced speedometer with range countdown
New fuel sender
High Performance “Full metal jacket” chrome-covered shock absorbers
Chrome Tommy Gun exhaust with Staggered Dual mufflers
180 mm-16 rear / 130 mm-16 front tires
Cast Aluminum Slotted Disc 16-inch front/rear wheels
Bobtail rear fender
5.1-gallon Fat Bob fuel tank
Drag-style handlebar on black riser
Polished aluminum triple clamps
Black fork lowers and mirrors
28-degree fork angle
Dual headlamps
Forward or mid foot controls
Optional Smart Security System
The Dimensions
Length 91.73 in. (2329.94 mm)
Overall Width 35.03 in. (889.76 mm)
Overall Height 44.56 in. (1131.82 mm)
Seat Height:
• Laden2: 26.10 in. (662.94 mm)
• Unladen: 27.08 in. (687.83 mm)
The Ground Clearance 4.92 in. (124.99 mm)
Rake (steering head) 29°
Fork Angle 28°
Trail 4.92 in. (124.97 mm)
Wheelbase 63.77 in. (1619.76 mm)
Tires (Dunlop® Harley-Davidson Series, bias blackwall front and rear):
• Front – D427F 130/90B16
• Rear – D427 180/70B16
The Fuel Capacity 5 gal. (18.93 L) (warning light at approximately 0.9 gal.)
Oil Capacity (w/filter) 3 qts. (2.84 L)
Transmission Capacity 1 qts. (0.95 L)
Primary Chain
Case Capacity11
1 qts. (0.95 L)
The Weight:
• As Shipped 669.70 lbs. (303.77 kg)
• In Running Order 703 lbs. (318.88 kg)
• Gross Vehicle Weight Rating 1085 lbs. (492.15 kg)
• Gross Axle Weight Rating:
• Front 390 lbs. (176.90 kg)
• Rear 695 lbs. (315.25 kg)
The Engine
Engine3 Air-cooled, Twin Cam 96™
Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
Bore x Stroke 3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)
Displacement3 96 cu. in. (1584 cc)
Compression Ratio 9.2:1
Fuel System9 Electronic Sequential Port Fuel Injection (ESPFI)
Air Cleaner Fiberglass Media, washable
Lubrication System Pressurized, dry-sump
The Drivetrain
Primary Drive Chain, 34/46 ratio
Final Drive10 Belt, 32/66 ratio
Clutch 9-plate, wet
Transmission 6-Speed Cruise Drive®
Gear Ratios (overall): U.S. HDI JPN
• 1st 9.312 9.312 9.030
• 2nd 6.421 6.421 6.266
• 3rd 4.774 4.774 4.630
• 4th 3.926 3.926 3.807
• 5th 3.279 3.279 3.179
• 6th 2.790 2.790 2.706
The Chassis
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
The Wheels4:
• Front- Silver, Solid Disc Cast Aluminum 16 in. x 3.50 in. (406.40 mm x 88.90 mm)
• Rear- Silver, Slotted Disc Cast Aluminum 16 in. x 5 in. (406.40 mm x 127 mm)
The Brakes:
• Caliper Type 4-piston fixed front, and 2-piston torque-free floating rear
• Rotor Type Patented, uniform expansion rotors (floating, front only)
(diameter x width):
• Front (dual floating) 11.80 in. x .20 in. (299.72 mm x 5.08 mm)
• Rear 11.50 in. x .23 in. (292.10 mm x 5.84 mm)
The Suspension Travel:
• Front Wheel 5 in. (127 mm)
• Rear Wheel 3.10 in. (78.74 mm)
The Performance
Engine Torque5 (per SAE J1349):
• North America 92 ft. lbs. @ 3000 rpm (124.75 NM @ 3000 rpm)
Lean Angle (per SAE J1168):
• Right 30°
• Left 31°
The Fuel Economy7
(EPA urban/highway test) 34/53 mpg (6.92/4.44 L/100 km)
The Electric
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 bea
• Tail/Stop Lights 8W/28W (5W/21W)
• Turn Signal Lights 28W (21W) self-canceling
• Indicator Lamps: High beam, directional light bar, neutral, low oil pressure, engine diagnostics, turn signals, security system6 (optional), 6-speed, low fuel warnings
Electric Power Outlet Standard
