Fxdf Dyna Fat Bob 2009

Harley Davidson FXDF Dyna Fat Bob

Make Model	Harley Davidson FXDF Dyna Fat Bob
Year	2009
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
Capacity	1584 cc / 96 cu-in
Bore x Stroke	95.3 x 111.1 mm
Cooling System	Air cooled
Compression Ratio	9.2:1
Induction	Electronic Sequential Port Fuel Injection (ESPFI)
Ignition	Single-fire, non-wasted, map-controlled spark ignition
Starting	Electric
Max Torque	124.7 Nm / 92 ft/ lbs. @ 3000 rpm
Clutch	Multi-plate, wet
Transmission	6 Speed
Final Drive	Belt
Gear Ratio	1st 9.312 / 2nd 6.421 / 3rd 4.774 / 4th 3.926 / 5th 3.279 / 6th 2.79
Frame	Mild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded
Front Suspension	49 mm with polished aluminum fork triple clamp and dual-rate springs
Rear Suspension	Coil over shock
Front Brakes	2x 299mm disc 4 piston caliper
Rear Brakes	Single 292mm disc 2 piston caliper
Front Tyre	D427F 130/90B16 67H
Rear Tyre	D427 180/70B16 77H
Rake	29�
Fork Angle	28�
Trail	125 mm / 4.9 in
Dimensions	Length 2329.9 mm / 91.7 in width 889.76 mm / 35.0 in Height 1131.82 mm / 44.5 in
Wheelbase	1619.7 mm / 63.7 in
Seat Height	Laden2 663 mm / 26.1 in Unladen 686 mm / 27.0 in
Dry Weight	303.7 kg / 7 lbs
Wet Weight	320.0 kg / 706 lbs
Gross Vehicle Weight Rating	392.2 kg / 1085 lbs
Fuel Capacity	18 9 Litres / 5.0 US gal

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.
All Dyna models feature a new silver-face speedometer with fuel range read-out, a new low-profile front fender and a new fuel sender. 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

Review

At this point in Harley's history they must start to feel like there's nothing new under the sun. It can't be easy after 105 years. Whether you're a Harley fan or not, one thing you can't do is underestimate a company that's been around that long.

So what did they do for year 1-0-5? Squeezed out three (two, really, as one is a slight variation on the same theme) new models from existing platforms, that's all.

Along with the expected new paint schemes, injection of chrome-a-licious accessories and a refresher on models recently released (Sportster Nightster as a late '07 and '08 CVOs) it was time to introduce the world to the Fat Bob, Rocker and Rocker C.

Fat Bob is the latest chunky-tired Dyna, formerly called the FXDF.

Now sixth in the family whose name begins with FXD, the Fat Bob brings some unique styling to the team, but ol' Bob carries the family genes in its ticker. The air-cooled, rubber-mounted, fuel-injected, Twin Cam 96 engine with a bore and stroke of 3.75 in. x 4.38 in. squeezing out a compression ratio of 9.2:1 that's good for a claimed 92 foot-pounds of torque at 3,000 rpm is what all Dynas use; including the Fat Bob.

The Fat Bob's 29-degree steering angle doesn't elicit the notion of razor sharp handling, however, it does boast the shortest wheelbase in the Dyna line at 63.7-inches. Combine that with just under five inches of ground clearance and a pair of 16-inch wheels and what you get is sporty-for-a-cruiser handling. Initial steering responses are a touch slow because of the chubby 130/90 tire up front, but once you've started the turn that same tire allows your confidence to grow as the bike continues to lean. Pushing all the way to the 4.92 inches of ground clearance and beyond was cake, and never once did I feel I had reached the limits imposed by the bike�s geometry. I often wished I could lean further as each new turn approached.

Slowing the Bob is the job of twin disc brakes up front and the ubiquitous single disc out back. Although pressure at the hand lever is transmitted through braided stainless steel lines, they still felt a bit numb and underpowered. A strong pull at the brake lever would ultimately result in a decent stop, but that's a little more than I care to apply to haul any bike down. Regardless of my performance-driven whining, the brakes were typical Harley in that they were sufficient but not great.

Conversely, application at the clutch lever was a welcomed light and easy feeling (there's gotta be a song in there somewhere). The six-speed transmission also offered familiar sensations expected from modern Harley trannies: a solid thunk and the impression that it'll last forever.

Speaking of comfort, Harley's has a winner with the cushy, sculpted saddle on this newest Dyna.

Just looking at spec sheet numbers and a list of components one could probably draw some safe conclusions about how the Fat Bob will make power and handle. Especially considering it shares so much of its core with the other Dynas. Where it does seek to set itself apart, quite naturally, is in the look and feel department. This fat Dyna makes a distinct departure from traditional styling by employing the previously mentioned 16-inch front tire and a rather unique headlight duo. Pairing two small headlamps mounted next to one another the design draws obvious parallels to a certain British bike maker; commentary amongst journos in the tech briefing echoed as much.

Another notable element of design and function are the drag-style bars with a mild V bend. These aggressive handlebars are joined to the top triple-clamp via its integrated riser. It creates a tough look, but not so tough that you can't enjoy the benefits of the rubber-mount. The bars grant good leverage for steering and do a good job of creating the rider triangle.

The other key equation to rider ergos is the footpeg placement. The Fat Bob I rode had mid-ship controls which helped put me in a very upright riding position. Unfortunately, over time I recognized that the mid-mounts created a cramped position for me as the bend in my knee was nearly 90 degrees. On the surface that may seem like an ideal angle, but with years of knee-abusing sports, stiffness set in at day's end.

Speaking of comfort, Harley's has a winner with the cushy, sculpted saddle on this newest Dyna. At first sitting I was afraid that it was too soft and mushy. But at the end of two days of riding through the lush and beautiful rolling farmland just outside of Baltimore and neighboring Pennsylvania I was happy to dismiss my presumptions about the seat. It remained all-day long comfy.

The look is clean and simple without looking Spartan. Its slash-cut double-barrel 2-1-2 shotgun exhaust is a good example of how this bike differs from its siblings without doing so at risk of being labeled some kind of insecure middle child. "Hey! Look at me... See how different I am!" is not how the Bob seeks approval. It does so by marrying its unique, understated appearance with a good motor and good handling. Despite the dearth of serious twists and turns in this part of Maryland, the few I was able to carve up whilst on Fat Bob had me thinking that this bike was one of the most fun Harleys I've ridden to date. I hope Fat Bob doesn't go on a diet. The FXDF Fat Bob has an MSRP of $14,795.

A perennial favorite, the Softail model line picks up two more players this year with the Rocker and Rocker C. Essentially they're the same basic bike save for a more custom look and a very trick feature found on the C model.

The Softail line utilizes the air-cooled, fuel-injected, Twin Cam 96B (B for balanced) powerplant with a six-speed tranny. Though the engine is basically the same as that found in the Dyna line, it isn't rubber-mounted like the Dynas. Rigid engine mounting emulates the pseudo hardtail swingarm/frame combo that so many hardtails are defined by. Thankfully there's a perfectly good shock absorber with 3.4 inches of travel tucked so far out of sight that finding it requires crawling on your belly just to get a glimpse of it.

But what makes a Rocker a Rocker? Before you go out and buy one expecting to join Vince Neil on stage when the Motley Crue reunion tour comes to town, think before you buy. The Rocker name has nothing to do with your second career and everything to do with how that gloriously big rear fender hugs and � believe it or not � moves or rocks with the 240-section rear tire and swingarm.

How did they do it?

The first step was to make a strong fender, one made from bonded construction rather than a typical sheet metal piece. The next step is to move away from the conventional frame-mount point. The Rocker's rear fender is actually joined to the swingarm via a cantilever mount. The end result is a fender that moves in unison with the tire as the swinger travels up and down. Riding alongside a Rocker and seeing the fender in action is a treat.

But the effort wasn't purely fashionable. Harley engineers purport there to be over 100 Gs of force acting on a traditional cruiser or rigid frame chopper's rear fender. That can spell disaster for the welds holding it to the frame. With the Rocker design, broken or cracked mounts are no longer a concern.

I made mention of the mandatory-for-a-custom-look 240-series rear tire and how it interacts with the fender. What I didn't mention was how such a big rear tire had little impact on the good handling of the bike. With a 19 x 2.15 tire wrapped around a five-spoke painted (or polished on the C) cast-aluminum spinner up front, I expected some pretty crummy handling. Nope, not here. Turn in is quick and handling is light and responsive. Hurray! The only drawback is the limited ground clearance. Here a scrape, there a scrape, everywhere a scrape, scrape.

Forward controls on most cruisers usually mean too much stretch for my 5' 8" frame. I was stoked to find this not so on the Rockers. Although there is a bit of the "C" or clamshell position from the ergos, it's not enough to make me swear off forward controls. What helped greatly was the shape of the saddle. It felt as though it was custom molded for my narrow ass. Overall, I was impressed with the fit.

The C model is the more custom-ified of the two, with plenty of chrome on the headlamp, triple clamps, handlebar riser, fork lowers, tank console, speedometer and polished cast- aluminum wheels. The paint is a bit more special, too, with flame pinstriping front to back. Additionally, the finned oil tank and swingarm are color matched to the frame where on the regular Rocker those two items have a "satin stainless metallic powdercoat."

So what's left to talk about? It's what you can't see on the Rocker C that makes it special. More than just chrome and paint, the C hides a secret. A secret that, depending on your station in life, may be the ticket that either keeps your mate happy or gets you a mate to begin with.

Tucked completely out of sight and under the rider seat is a simple pillion that attaches lickity split and hovers precariously over the rear fender. Called the Trick seat (yes, it's already trademarked), this sneaky saddle requires no tools and only takes about one minute to attach, worse case scenario. It goes a little something like this: Lift the rider saddle, pull out the rider seat pad, pull up and out on the strut, slip it into a groove, pop the rider pad on its perch and lock it into place with a slide pin. Voila! Instant chick getter.

This tiny pillion was about the only thing to create a perceptible ride difference between the two Rockers. The difference being how the rider (driver) sits on the saddle when the Trick seat is tucked away out of sight. Though they share the same saddle, the version on the C causes the rider to sit a bit taller thanks to the necessary clearance needed under the seat for the hidden passenger mount. Handling isn't affected, but the sensation is that you sit higher on the C. Start with and stay on the same bike and you'll never know any different.

I haven't ridden all the custom or custom-like cruisers out there, but I've ridden enough to know that the Rockers pull off what so many can't � combining look, sound and feel with actual riding performance and a reasonable level of comfort. Rock on!

Source Motorcycle.com