2010 Harley-Davidson FXDFSE2 CVO Fat Bob: Dyna CVO Fat Bob 2 with Screamin' Eagle Twin Cam 110

The 2010 Harley-Davidson FXDFSE2 CVO Fat Bob was the second and final-year Custom Vehicle Operations version of the Dyna Fat Bob, following the 2009 FXDFSE and carrying the enthusiast shorthand CVO Fat Bob 2. It belonged to a narrow and interesting corner of Harley-Davidson history: a CVO Dyna built around the muscular FXDF Fat Bob silhouette rather than the touring and Softail platforms that usually dominated the CVO catalogue.

Mechanically, the FXDFSE2 was defined by the Screamin' Eagle Twin Cam 110, a 110 cubic inch air-cooled, pushrod V-twin in the rubber-mounted Dyna chassis. Visually, it used the Fat Bob cues that made the standard FXDF instantly recognizable: twin headlamps, a broad-shouldered tank, fat 16-inch rubber, exposed twin shocks, and a heavy-set stance that looked closer to a factory street bruiser than a traditional chrome boulevard cruiser.

Best Known For: the 2010 FXDFSE2 CVO Fat Bob is best known as a short-run Dyna CVO model combining the FXDF Fat Bob chassis and styling package with Harley-Davidson's factory Screamin' Eagle Twin Cam 110 powertrain and CVO-grade paint, trim, and equipment.

Quick Facts

The FXDFSE2 is best understood as a specific 2010 variant, not as a broad multi-year model line. The broader FXDFSE CVO Fat Bob family covers the 2009 FXDFSE and the 2010 FXDFSE2, both built from the Dyna Fat Bob concept but distinguished by model-year-specific paint, trim, and equipment details.

The table shows why the FXDFSE2 is not merely a dressed-up Fat Bob. The core attraction is the combination of the Dyna chassis and factory 110-inch CVO engine, a pairing that places it closer to Harley's factory-hot-rod tradition than to the heavily equipped touring CVO machines of the same period.

Why the 2010 FXDFSE2 CVO Fat Bob Matters

The FXDFSE2 matters because Harley-Davidson rarely used the Dyna platform as a CVO centerpiece. Custom Vehicle Operations machines were usually associated with touring flagships, Softail customs, and limited-edition luxury equipment packages. A Dyna CVO, particularly one based on the Fat Bob, speaks to a different customer: someone who wanted the biggest factory Twin Cam engine in a shorter, more aggressive, less touring-oriented chassis.

The Fat Bob shape also marked a shift in factory custom language. Instead of aping a rigid-frame chopper or a traditional wide-glide cruiser, the FXDF and FXDFSE models leaned into visual mass: dual headlamps, broad rubber, a blunt rear fender, and a compact fighting stance. In 2010 CVO form, that look was overlaid with Harley's premium paint and component program, making the FXDFSE2 both a production motorcycle and a factory statement about the Dyna platform's performance identity.

For collectors, the point is not that the FXDFSE2 was a racing machine or a homologation special. It was neither. Its significance lies in being a low-volume, model-year-specific CVO Dyna with the factory 110 engine, and in representing the Fat Bob before the later Milwaukee-Eight Softail-era reinterpretation changed the model's underlying chassis identity.

Historical Context and Development Background

By the late 2000s, Harley-Davidson's Dyna line occupied a useful middle ground between the traditional Sportster and the heavyweight touring and Softail ranges. The Dyna chassis retained exposed twin rear shocks, a visibly mechanical silhouette, and a rubber-mounted Big Twin engine. Enthusiasts who disliked the more concealed Softail rear suspension often preferred the Dyna because it looked and felt less stylized and more direct.

The standard FXDF Fat Bob arrived as part of Harley's effort to expand the Dyna image beyond familiar Super Glide, Low Rider, Street Bob, and Wide Glide territory. Its twin headlamps, wide front tire, and 2-1-2 exhaust layout gave it a deliberately tough, contemporary presence. The CVO version took that identity and added the larger Screamin' Eagle 110 engine, CVO paint, upgraded trim, and model-specific equipment.

Harley-Davidson's Custom Vehicle Operations program had matured into a major halo-brand exercise by this period. CVO motorcycles were not simply accessory catalog builds; they were factory-assembled limited-production machines with paintwork, engines, wheels, instruments, seating, and finish packages that were not duplicated exactly on standard models. The FXDFSE2 used that strategy in a relatively compact Dyna format, which is precisely why it remains interesting to marque specialists.

The competitor landscape was also changing. Metric manufacturers were selling power cruisers and factory customs with large-displacement V-twins, while Victory was building muscular American cruisers that challenged Harley in style and displacement. Inside Harley's own showroom, the V-Rod Muscle offered liquid-cooled performance and a very different engineering philosophy. The FXDFSE2 answered with a traditional air-cooled Big Twin architecture, but with the largest factory CVO Twin Cam then central to Harley's premium range.

Engine and Drivetrain

The 2010 FXDFSE2 used the Screamin' Eagle Twin Cam 110, an air-cooled 45-degree V-twin with pushrod-operated overhead valves. In Dyna installation it was rubber-mounted in the frame, which is an important distinction from counterbalanced Softail Twin Cam B applications. The result was a large-displacement Harley Big Twin with substantial torque character, isolated from the rider at speed by the Dyna mounting system but still mechanically present at idle and low rpm.

The 110 used electronic sequential port fuel injection rather than a carburetor, electronic ignition, dry-sump lubrication, and hydraulic lifters. Primary drive was by chain to a wet multi-plate clutch, with a 6-speed Cruise Drive gearbox and belt final drive. Factory horsepower figures were not a normal Harley-Davidson publication point for these models, and stock rear-wheel dyno numbers vary with market equipment, exhaust condition, tuning, and test method, so horsepower should not be treated as a reliable identification figure.

The following table concentrates on verifiable mechanical architecture rather than aftermarket performance claims.

The Twin Cam 110 is central to the FXDFSE2's value and identity. A standard FXDF of the period is a desirable Dyna in its own right, but the CVO model's factory-installed 110 engine, CVO calibration, intake and exhaust equipment, and model-specific finish separate it from an accessorized Fat Bob.

Chassis, Suspension, and Braking

The FXDFSE2 sat on Harley-Davidson's Dyna chassis, using a rubber-mounted engine and exposed twin rear shocks. That architecture gives the motorcycle a different visual and dynamic character from a Softail CVO. The engine is plainly part of the motorcycle's structure and presentation, yet isolated enough that highway vibration is not the same constant mechanical hammer one associates with rigid-mounted earlier Big Twins.

Fat Bob chassis identity comes from width and stance. The 16-inch wheels, broad tires, substantial fork assembly, dual headlamps, and twin rear shocks combine to make the bike look planted and heavy in the front shoulders. It is not a long-fork chopper imitation; it is a Dyna with more tire, more visual mass, and more factory custom equipment.

The chassis specification explains much of the model's appeal. It has the recognizable Dyna bones serious Harley riders understand, but the CVO Fat Bob treatment gives it more visual aggression and factory exclusivity than the standard FXDF.

Riding Experience and Mechanical Character

The FXDFSE2 starts like a modern fuel-injected Harley rather than an older ritual machine: ignition on, electric starter, fuel pump prime, and the big Twin Cam settles into a deliberate idle. There is no kick-start theatre, no hand shift, and no foot clutch. The ritual is contemporary Harley-Davidson, but the sound and pulse remain unmistakably air-cooled Big Twin.

At low rpm, the 110 feels large before it feels fast. The appeal is not a frantic rush to redline but the heavy flywheel cadence, the broad shove off idle, and the sense that the engine is happiest when loaded against taller gearing. The rubber-mounted Dyna layout filters much of the harshness once underway, but the bike still announces its engine size through exhaust cadence, intake presence, and the physical motion of the powertrain at idle.

The clutch and gearbox are modern Harley: substantial rather than delicate, with a positive shift action and a long-legged sixth gear intended for open-road use. The Fat Bob's wide tires and mass give it steady road manners, though not the quick steering of a narrower Dyna. Low-speed work reminds the rider that this is a big-inch factory custom, not a middleweight standard.

Braking is materially better than single-disc cruiser expectations because of the dual front discs, but the bike still rewards a rider who understands weight transfer and plans inputs. The FXDFSE2 is not a sport motorcycle in disguise. Its virtue is the way it turns a large air-cooled engine, a substantial chassis, and factory custom hardware into a cohesive road machine with a blunt, mechanical personality.

Identification and Originality

Correct identification begins with the model code. The 2010 CVO Fat Bob is FXDFSE2, while the 2009 version is FXDFSE. Paperwork, VIN records, the factory certification label, service records, and the owner's documentation should all support the model identity. Avoid relying solely on badges, paint, wheels, or Screamin' Eagle parts, because standard Dynas are often modified with CVO-style components.

The most valuable examples tend to retain their CVO-specific paint, trim, seat, wheels, instruments, air cleaner, exhaust configuration, and finish details. CVO paintwork is a major originality marker; replacement tins, repainting, or collision-repaired bodywork can materially affect collector interest. Surviving examples often show aftermarket exhausts, fuel tuners, handlebars, seats, license-plate treatments, and intake modifications, so a buyer should establish what original parts are included even if the motorcycle is presently modified.

Engine and frame number scrutiny matters, but modern Harley-Davidson identification should be approached carefully rather than through folklore. Confirm the frame VIN against the title and factory labels, check that the engine cases have not been altered or replaced without documentation, and review dealer service history where available. A legitimate engine replacement or major repair is not automatically disqualifying, but it changes the documentation burden.

For restoration, CVO-specific parts can be more difficult to source than standard Dyna components. Standard wear items, service parts, gaskets, driveline components, brake parts, and many chassis service items remain well supported through Harley-Davidson, aftermarket suppliers, and specialists. The difficult pieces are usually cosmetic: original paint sets, model-specific trim, unique wheels, badges, seat covers, instruments, and finish-matched hardware.

Model Code and Variant Breakdown

The CVO Fat Bob sits among related Dyna models that are frequently confused in listings and enthusiast conversation. The table below separates the standard Fat Bob from the two CVO Fat Bob years and adjacent Dyna CVO context.

There were no factory police, military, or racing versions of the FXDFSE2 CVO Fat Bob. Its importance is civilian, commercial, and collector-based: a limited-production premium Dyna with the largest CVO Twin Cam engine of its period.

Performance and Dimensional Specifications

Harley-Davidson documentation for CVO models emphasizes displacement, torque character, equipment, paint, and chassis specification more than sport-bike-style performance numbers. Factory horsepower was not a consistently published identifier, and 0-60 mph, quarter-mile, and top-speed figures should be treated as magazine-test or owner-test data rather than factory specification.

For a buyer or restorer, the meaningful documented performance specification is the 110 cu in / 1802 cc Screamin' Eagle Twin Cam engine mated to the 6-speed Cruise Drive transmission. Period torque figures can vary by market documentation and test method, so serious verification should be made against the correct-market owner's manual or factory technical material for the exact motorcycle being evaluated.

Compared With Related Harley-Davidson Models

FXDFSE2 CVO Fat Bob vs. 2009 FXDFSE CVO Fat Bob

The 2009 FXDFSE and 2010 FXDFSE2 share the central idea: CVO Fat Bob styling with the Screamin' Eagle Twin Cam 110. The difference is model-year execution. Paint, trim, component finishes, and some equipment details are year-specific, which matters when judging originality or assembling missing parts.

FXDFSE2 CVO Fat Bob vs. Standard FXDF Fat Bob

The standard FXDF is the motorcycle that established the Fat Bob look, but the FXDFSE2 is not simply a standard Fat Bob with accessories. The factory 110 engine, CVO equipment package, premium paint, and model code make it a distinct production motorcycle. A modified FXDF can be made faster or louder, but it will not become an FXDFSE2 in collector terms.

FXDFSE2 CVO Fat Bob vs. FXDSE CVO Dyna Super Glide

The earlier FXDSE and FXDSE2 CVO Dyna Super Glide models are natural comparison points because they also brought the 110 engine to the Dyna platform. The Fat Bob version, however, has a much heavier visual identity: twin headlamps, wide tires, and a broader stance. The Super Glide CVO reads as a premium performance Dyna; the CVO Fat Bob reads as a factory muscle custom.

FXDFSE2 CVO Fat Bob vs. Touring CVO Models

Touring CVO models of the same era offered luggage, wind protection, audio equipment, and long-distance comfort. The FXDFSE2 offered none of that as its main argument. Its appeal is concentration: the big CVO engine in a Dyna chassis with far less touring mass and a more elemental rider interface.

Restoration and Ownership Notes

Mechanically, the FXDFSE2 benefits from the broad support network around Twin Cam Harleys. Routine service parts, driveline components, brake consumables, clutch parts, electrical service items, and many engine components are not obscure. The challenge is preserving the model-specific CVO identity rather than merely keeping the motorcycle running.

Twin Cam 110 ownership requires attention to heat management, oil leaks, compensator condition, primary drive wear, clutch behavior, charging health, and previous tuning work. Many examples were fitted with aftermarket exhaust systems and fuel-management devices early in life. A poorly tuned 110 can run hot, start poorly, or exhibit drivability issues that are not inherent to the model when correctly set up.

Evidence of major top-end work should be documented with invoices, parts lists, and the name of the shop. High-compression big-inch Twin Cam engines reward careful assembly, correct fastener procedure, and attention to oiling, lifters, cam-drive condition, and crankshaft condition. A neat cosmetic restoration means little if the engine history is unknown and the calibration has been improvised.

Cosmetic restoration can be far more difficult than mechanical repair. CVO paint sets and trim pieces are not like standard black Dyna tins that can be sourced and refinished casually. A bike with original paint, original CVO equipment, both keys or fobs where applicable, owner's materials, service records, and retained take-off parts deserves a different inspection standard from a heavily customized rider.

Buyer and Restoration Inspection Points

A serious inspection should separate three questions: is it truly an FXDFSE2, is it mechanically healthy, and does it retain the CVO-specific content that gives the model its collector value?

The best purchases are not always the lowest-mileage examples. A well-serviced, lightly used FXDFSE2 with original parts and complete records can be a better long-term proposition than a static display bike with degraded fuel system components, aged tires, and missing CVO pieces.

Collector and Market Relevance

The FXDFSE2 occupies a specific collector niche: late Twin Cam-era Harley-Davidson CVO, Dyna chassis, factory 110 engine, and short model-year availability. It does not have racing pedigree or military provenance, and it was not built to be a utilitarian police machine. Its appeal is factory specification, limited production character, and the enthusiast affection attached to the Dyna platform.

Collectors typically value originality first: correct model code, original CVO paint, uncut or unaltered chassis, factory equipment, retained take-off parts, and credible service history. Tasteful period modifications may make a motorcycle more enjoyable to ride, but extensive customization usually narrows the buyer pool unless every original part is included.

Exact production numbers for many CVO discussions can be inconsistently repeated in enthusiast sources, and market claims should be treated carefully unless tied to factory documentation or a specific sale record. The safer collector statement is this: the FXDFSE2 was a one-model-year CVO Dyna Fat Bob, and that alone places it outside ordinary Dyna production.

Cultural Relevance

The CVO Fat Bob has no meaningful racing or military history, and forcing one onto it would misunderstand the motorcycle. Its cultural role is in Harley's factory custom tradition and in the later esteem for the Dyna platform among riders who favored exposed shocks, a rubber-mounted Big Twin, and a more direct chassis feel than the touring and Softail families offered.

The FXDFSE2 also anticipated part of the later Dyna performance conversation. Before the modern club-style and performance-Dyna scenes became widely visible, Harley had already shown that a premium Dyna could be built around stance, engine, and attitude rather than luggage or nostalgic detailing. The CVO Fat Bob was not a club bike, but it gave the Dyna platform a factory high-performance aura that still reads clearly.

FAQs

What years was the Harley-Davidson FXDFSE2 CVO Fat Bob made?

The FXDFSE2 CVO Fat Bob was a 2010 model-year motorcycle. The broader CVO Fat Bob family consists of the 2009 FXDFSE and the 2010 FXDFSE2.

What engine is in the 2010 FXDFSE2 CVO Fat Bob?

It uses the Screamin' Eagle Twin Cam 110, an air-cooled 45-degree OHV V-twin displacing 110 cubic inches, or 1802 cc. It was paired with electronic fuel injection and a 6-speed Cruise Drive transmission.

Is the FXDFSE2 the same as a standard FXDF Fat Bob?

No. The standard FXDF Fat Bob shares the basic Fat Bob identity and Dyna platform, but the FXDFSE2 is a CVO model with the factory 110-inch Screamin' Eagle engine, CVO-specific paint, trim, equipment, and model code.

Why is it called CVO Fat Bob 2?

CVO Fat Bob 2 is an enthusiast shorthand for the FXDFSE2, the second-year CVO Fat Bob. The 2009 model was FXDFSE, and the 2010 model carried the FXDFSE2 code.

Did Harley-Davidson publish horsepower for the 2010 CVO Fat Bob?

Factory Harley-Davidson material for these models generally emphasized displacement and torque rather than horsepower. Aftermarket dyno figures vary with exhaust, tuning, test method, and condition, so horsepower is not a reliable originality or identification figure.

What are the most important originality items on an FXDFSE2?

The most important items are the correct FXDFSE2 identity, original CVO paint and tins, CVO-specific trim and wheels, factory-style intake and exhaust equipment where retained, documentation, and service history. Missing original take-off parts can affect collector interest.

Are parts available for the 2010 FXDFSE2 CVO Fat Bob?

Mechanical service parts are generally well supported because the motorcycle is based on the Twin Cam Dyna platform. CVO-specific cosmetic pieces, original paintwork, trim, wheels, seats, and model-specific details are much harder to replace correctly.

Collector Takeaway

The 2010 Harley-Davidson FXDFSE2 CVO Fat Bob matters because it is one of the clearest factory expressions of the Dyna as a premium performance cruiser. It is not a touring CVO stripped of luggage, and it is not a standard FXDF with catalog parts. It is a one-year CVO Fat Bob with the 110-inch Screamin' Eagle engine in the exposed-shock Dyna chassis.

For the collector, the FXDFSE2 rewards discipline. Buy the identity, the paint, the documentation, and the original parts before buying the noise. The best examples preserve the specific moment when Harley-Davidson put its biggest CVO Twin Cam into one of its most visually aggressive Dyna models and let the Fat Bob shape carry the message without pretending to be anything else.