Harley-Davidson Fat Bob Specs, Top Speed & Review
TL;DR
- The Harley-Davidson Fat Bob 114 (FXFBS) runs a Milwaukee-Eight 114 V-twin making 93 hp and 118 lb-ft of torque at 3,000 rpm.
- Top speed is approximately 110 mph based on independent road tests; Harley-Davidson does not publish an official figure.
- Curb weight is 676 lbs with a 27.7-inch seat height, making it more accessible than its bulk suggests.
- The Fat Bob 114 was discontinued from North America after the 2023 model year; the used market and any remaining new-old-stock are the only US purchase options.
- It suits experienced riders who want a fighter-styled cruiser with legitimate handling ability, not a beginner’s first bike.
Harley-Davidson Fat Bob Specs: Full Data Table
The Fat Bob 114 (model code FXFBS) is the sport-leaning variant in the Softail lineup. Specifications below cover the 2021-2023 production run, which is unchanged across those years (Harley-Davidson, 2023):
| Spec | Detail |
|---|---|
| Engine | Milwaukee-Eight 114 V-twin, 60-degree, air/oil-cooled |
| Displacement | 1,868cc (113.9 cu in) |
| Bore x Stroke | 102mm x 114mm |
| Compression Ratio | 10.5:1 |
| Claimed Power | ~93 hp @ 5,020 rpm |
| Peak Torque | 118-119 lb-ft @ 3,000 rpm |
| Transmission | 6-speed Cruise Drive, wet multiplate clutch |
| Final Drive | Belt |
| Front Suspension | Non-adjustable 43mm inverted cartridge fork, 5.1 in travel |
| Rear Suspension | Spring-preload adjustable shock, 4.4 in travel |
| Front Brake | Dual 300mm discs, 4-piston fixed calipers |
| Rear Brake | Single 260mm disc, 2-piston floating caliper |
| ABS | Optional |
| Front Tire | Dunlop D429 150/80-16 |
| Rear Tire | Dunlop D429 180/70-16 |
| Rake | 28 degrees |
| Wheelbase | 63.6 in (1,616mm) |
| Seat Height | 27.7 in (705mm) |
| Fuel Tank | 3.5 US gallons (13.2 L) |
| Curb Weight | 676 lbs (306 kg) |
| MSRP (2023, US) | ~$18,999 (Vivid Black) |
Fat Bob Top Speed and Acceleration: What Real-World Testing Shows
Harley-Davidson does not publish official top speed or 0-60 mph figures for the Fat Bob 114. Top speed is approximately 110 mph (177 km/h), consistent across independent road tests (SpeedMasti, 2024; Topspeed.com, 2023). Some owners report brushing 115 mph briefly in optimal conditions.
A confirmed 0-60 mph time from a major outlet does not exist for this model. Based on torque delivery and weight, the expected range falls between 4.0 and 4.5 seconds. The more telling number is the mid-range pull: with 118 lb-ft arriving before 3,500 rpm, roll-on acceleration from 40-70 mph is strong and immediate.
The modest top speed relative to displacement comes down to physics. At 676 lbs and an upright riding position, the Fat Bob fights aerodynamic drag that a sportier machine avoids. It reaches 100 mph without strain – holding 110+ becomes uncomfortable without a windscreen.
Milwaukee-Eight 114 Engine: Character and Delivery
The Milwaukee-Eight 114 is an air/oil-cooled 60-degree V-twin displacing 1,868cc. Four valves per cylinder and dual internal balancers control vibration; the engine mounts rigidly into the Softail frame, so you feel the motor’s character without the older-generation buzz.
The torque curve is the story here. It stays flat and wide rather than spiking at a specific rpm, making the engine forgiving across a wide range of riding situations. Second gear at 30 mph, roll the throttle, and the bike pulls cleanly. Sixth gear on the highway puts rpm at roughly 2,800-3,000 at 70 mph, which keeps heat and noise manageable.
The 2-into-2 upswept exhaust produces one of the better stock sounds in the cruiser segment – a low, aggressive bark without highway drone. Akrapovic and Vance & Hines slip-ons are common first modifications if you want more.
Chassis and Handling: Better Than Its Weight Suggests
The Fat Bob handles better than a 676-pound cruiser has any right to. The 28-degree rake and 63.6-inch wheelbase create steering geometry that changes direction with genuine purpose. It’s not a naked street fighter, but for a cruiser of this size, corner entry is composed and predictable (Ultimate Motorcycling, 2020).
The 43mm inverted fork has 5.1 inches of travel and cartridge internals. Non-adjustable from the factory – a reasonable criticism at the $19K price point. The spring rate works for solo riding at moderate pace; add a passenger or rougher pavement and the limits arrive quickly. The rear shock offers spring preload adjustment only.
Dual 300mm front discs with 4-piston fixed calipers are adequate rather than impressive. ABS is optional, not standard – a notable omission at this price on a 676-pound motorcycle.
Fat Bob Strengths and Limitations
Strengths:
- The torque delivery is class-leading for street riding. 118 lb-ft before 3,500 rpm means you’re rarely working hard in real traffic.
- Ergonomics are more neutral than most cruisers. Flat-bend handlebar, mid-forward controls, and the 27.7-inch seat height combine into a position that holds up on a three-hour ride.
- Best-handling bike in the Softail cruiser line. The inverted fork and narrower profile compared to the Fat Boy deliver real steering precision.
Limitations:
- The 3.5-gallon tank limits range to roughly 140-160 miles. That’s a stop every 120-130 miles if you ride with a buffer.
- Non-adjustable suspension front and rear (preload only at the rear) is a miss at this price.
- ABS is optional on a 676-pound motorcycle. Prioritize finding an ABS-equipped example when buying used.
- Discontinued from North America after 2023. Warranty support from dealers on new sales is gone, and parts availability will tighten.
Who Should Buy the Harley-Davidson Fat Bob 114
The Fat Bob fits a specific rider: someone with at least 2-3 years of experience who wants a cruiser with actual handling ability, doesn’t want a full dresser, and values the aggressive visual identity over outright touring comfort.
It’s not a beginner bike. At 676 lbs with forward controls, new riders struggle with slow-speed maneuvering. The low seat height helps with reach, but weight handling demands some experience.
Experienced urban and weekend riders who log 5,000-15,000 miles per year will get the most from it. It commutes fine, covers weekend distance without misery, and rewards a rider who actually leans it into corners. If you need a two-up tourer, look at the Fat Boy 114 or Street Glide instead.
Frequently Asked Questions About the Harley-Davidson Fat Bob
What is the top speed of the Harley-Davidson Fat Bob 114?
Independently reported top speed is approximately 110 mph (177 km/h). Harley-Davidson does not publish an official figure. Real-world highway cruising is most comfortable at 70-80 mph, where the engine is relaxed and fuel economy holds around 40-47 mpg (Freedom Road Harley-Davidson, 2023).
How much horsepower does the Fat Bob 114 make?
Harley-Davidson claims approximately 93 hp at 5,020 rpm. The more practically relevant number is peak torque: 118-119 lb-ft at 3,000 rpm. That torque number is what makes the bike feel strong in real riding conditions.
Is the Fat Bob 114 still in production?
No. Harley-Davidson discontinued the Fat Bob 114 from its North American lineup after the 2023 model year (Topspeed.com, 2024). Used 2018-2023 examples and any remaining dealer new-old-stock are the only ways to buy one in the US.
Is the Fat Bob 114 a good beginner motorcycle?
No. The 676-pound curb weight, torque-heavy engine, and forward-mounted controls all require prior experience to manage safely. The low seat height helps, but weight management at slow speeds is where beginners typically struggle.
What is the fuel range on the Fat Bob 114?
The 3.5-gallon tank, combined with 40-47 mpg fuel economy, gives a realistic range of 140-160 miles before reserve. Plan fuel stops accordingly on longer rides.
How heavy is the Fat Bob 114?
Curb weight (with all fluids) is 676 lbs (306 kg). The low seat height and low center of gravity partially offset the mass, but it is not a light motorcycle.
Key Takeaways
- Milwaukee-Eight 114 makes 93 hp and 118 lb-ft of torque; the torque number defines how it rides.
- Top speed is approximately 110 mph; roll-on acceleration from 40-70 mph is the strong suit.
- Non-adjustable fork and preload-only rear shock are the biggest suspension limitations.
- Best-handling cruiser in the Softail line, with an inverted fork and 28-degree rake delivering real cornering ability.
- 3.5-gallon tank limits range to around 140-160 miles. Budget for frequent fuel stops.
- Discontinued from North America after 2023; buy used or find remaining dealer stock.
