2025–2026 · Cruiser · Buyer's Guide
Maximum Style, Maximum Torque
The Fat Boy has never asked permission to be subtle, and this one leans harder into that than ever. The Milwaukee-Eight 117 Custom sits in the Softail frame putting out 102 hp and 126 lb-ft from 1923 cc of air/oil-cooled 45-degree V-twin, which is a torque number you feel in your chest rather than read on paper. Solid Lakester wheels, a 7-inch LED headlamp, and that fat front end give it a silhouette nobody has to squint at. It scores a flat 10 on chopper style and characterful design, and in this class that is the whole point.
Underneath the theater there is more competence than the stance suggests. Cornering ABS, traction control, ride modes, and cruise control come standard, and both ends of the suspension are adjustable, so the bike behaves like something built in this decade. It runs 694 lb (315 kg) wet on a 65.0 in (1651 mm) wheelbase, and you plan your parking-lot moves accordingly. The 25.9 in (658 mm) seat makes both boots reach the ground easily. Buy it for presence and mechanical drama; do not buy it expecting a light, flickable machine, because it never pretended to be one.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 102 hp (76 kW) |
|---|---|
| Torque | 126 lb-ft (171 Nm) |
| Displacement | 1923 cc |
| Engine | 45° V-twin |
| Cooling | Air/oil-cooled |
| Gearbox | 6-speed |
| Final drive | Belt |
| Fork | Telescopic |
| Front brake | 300 mm |
| Wheelbase | 65.0 in (1651 mm) |
| Seat height | 25.9 in (658 mm) |
| Wet weight | 694 lb (315 kg) |
| Fuel capacity | 5.0 gal (18.9 L) |
Equipment check
Chassis
Lighting
Safety
You notice the sound before anything else. Air-cooled V-twins talk, and this one has a low, unhurried voice at idle that firms up into something serious once you crack the throttle open. Vibration comes through the bars and pegs in measured pulses, enough to remind you there are two big pistons doing real work, never enough to numb your hands on a long stretch. The riding position drops you low into the bike rather than perching you on top of it, feet forward, arms relaxed, with the mass sitting well below your hips. At highway pace it settles and tracks straight, an 8.8 for high-speed stability that you feel as calm rather than effort. The fit and finish holds up under close inspection: paint, metal, and switchgear all read as deliberate.
Airbox breather port blockage causes crankcase pressure and oil leaks
A blocked airbox backplate breather port allows crankcase pressure to build, potentially ejecting oil when the dipstick is removed. Can cause milky residue on dipstick and oil leaks at exhaust joints. The issue prompted recall 25V375 affecting certain 2025-2026 Softail models including the Fat Boy.
Where this Harley-Davidson Fat Boy 117 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Seat height
Forget spec-sheet bragging. Here's who the Fat Boy 117 is actually built for.
This is the bike people walk over to look at, and that matters to you. Sound, presence, and a 10 for chopper style deliver exactly the statement you ride for.
Made for A1A — Florida Atlantic Coast · Black Hills / Sturgis Rally Hub · Daytona Main Street / Bike Week
For unhurried miles on historic routes it fits well: relaxed feet-forward seating, huge torque, standing-still good looks. Just accept that this is heavy metal, not a light classic.
Made for Acadia National Park · Austin / Handbuilt Motorcycle Show · Blue Ridge Parkway
Cruise control, real stability, and effortless torque cover long days. But there is no fairing or luggage here, and the 5.0 gal tank keeps your stops closer together than a tourer's.
Made for Beartooth Highway · Blue Ridge Parkway · Going-to-the-Sun Road
If you're cross-shopping the older generation, here's what changed.
Previous generation · 2018–2019
Solid Wheels, Maximum Presence
Compare to the previous model →If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
