·
2004–2006 · Tourer · Buyer's Guide
Factory Custom, Built to Roll
The Road King Custom takes the touring Road King and strips it lean. Harley slammed the suspension, cleaned up the fenders, and hung smooth leather saddlebags on hidden supports, so the FLHRS reads as a factory bagger with a low, purposeful stance instead of a chrome-heavy long-hauler. Underneath sits the air-cooled 1449 cc Twin Cam 88, a 45° V-twin pushing 66 hp and 86 lb-ft through a five-speed box and a belt final drive. It is built for rumble and roll, not for chasing a number, and the whole package carries classic American touring character without the full dresser bulk.
On the road it rewards a relaxed hand. The belt drive and hydraulic lifters keep maintenance light, and the low center of gravity makes all 736 lb feel honest at walking pace and easy to place in traffic. It ages well when the known cam chain tensioner wear gets watched and serviced. Who is it for? Riders who want a stripped Road King that looks and sounds like a statement and still handles a weekend two-up. The honest caveat: 66 hp and a 5.0 gal tank set both the pace and the range, so plan around them.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 66 hp (49 kW) |
|---|---|
| Torque | 86 lb-ft (117 Nm) @ 3,500 rpm |
| Displacement | 1449 cc |
| Engine | 45° V-twinMotorcycles With V-Twin Engines → |
| Cooling | Air-cooled |
| Gearbox | 5-speed |
| Final drive | BeltMotorcycles With Belt Drive → |
| Fork | Telescopic |
| Front brake | 292 mm |
| Front tire | 130/90-16 |
| Rear tire | 150/80-16 |
| Wheelbase | 63.5 in (1613 mm) |
| Seat height | 26.5 in (673 mm)Motorcycles With a Seat Height Under 30 Inches → |
| Wet weight | 736 lb (334 kg) |
| Fuel capacity | 5.0 gal (18.9 L) |
| Top speed | 109 mph (175 km/h) |
| Fuel economy | 39 mpg (US) |
Equipment check
Chassis
Comfort
Over the years I've heard plenty about this bike from the people who own it: in the paddock, over coffee on club nights, and in the emails and messages riders send me. For the 2004–2006 Road King Custom, the picture is consistent. Owners praise how well it moves between daily riding and touring and how the engine pulls. The gripes come back to weight, cornering clearance and a short equipment list.
Riders keep saying that the hard saddlebags and the quick-detach windshield are what make this bike work. With the screen off, owners call it an easy daily commuter. With it back on, they call it a comfortable long-distance tourer. The engine gets the same steady praise: plenty of low-end pull, and a sound owners describe as the heart of the Harley experience.
The complaints are just as consistent. Owners call the weight a handful on tight switchbacks and in slow maneuvers, especially for newer riders. The lowered chassis and the floorboards scrape early in corners, and riders say that holds back spirited riding compared with standard-height tourers. Some owners say the five-speed runs at higher revs on the highway and vibrates more than the later six-speed. Owners also point out that it has no factory ABS or cruise control, while rival tourers of the era often offered more technology.
Cam chain tensioner wear/failure
The spring-loaded cam chain tensioners on the Twin Cam 88 engine are prone to premature wear. When the plastic shoes break apart, debris can block the oil pump pickup, causing sudden oil pressure loss and potentially catastrophic engine damage. Inspect and replace tensioners by 30,000 miles; hydraulic upgrade kit available.
Valve guide seal oil consumption
Some 2005 models experienced excessive oil consumption due to prematurely failing valve guide seals. This could be misdiagnosed as a more serious engine problem. A Harley-Davidson service bulletin addressed the issue, and many bikes were repaired under warranty.
Where this Harley-Davidson Road King Custom FLHRS 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
Top speed
Seat height
Forget spec-sheet bragging. Here's who the Road King Custom FLHRS is actually built for.
This is your bike. The sound, the presence, and the bottomless aftermarket give you the identity and the statement you ride for, whether the destination is Sturgis or A1A.
Made for Florida State Road A1A · Black Hills · Main Street, Daytona Beach
It carries you in comfort and looks right doing it, but be honest about the pace and the 5.0 gal tank. For loaded, two-up coast-to-coast days you'll be planning around fuel and power.
Made for Beartooth Highway · Blue Ridge Parkway · Going-to-the-Sun Road
Wrong tool for the job. At 736 lb with a low, long, relaxed build, this Road King is happiest on open highway, not carving repeat runs of tight mountain twisties.
Made for Tail of the Dragon · Back of the Dragon · Blue Ridge Parkway
If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
Successor · 2007
Competitor · 2010–2012
Chrome, Thunder, Factory Prestige
Competitor · 2005–2006
The Blank Canvas Bagger
Competitor · 2003–2007
Honda's Rolling Chrome Sculpture
Same Platform · 2005–2006
Big Miles, Batwing Comfort
Compare it with every bike that shares the same spec or equipment.