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2002–2006 · Sport Tourer · Buyer's Guide
Boxer Torque, Planted Fast
The R 1100 S takes the 1085 cc air/oil-cooled boxer and points it down a faster road. The 98 hp figure arrives without drama, but the 72 lb-ft peak at 5,750 rpm is the real story: this engine works in the middle, pulling from low revs with a long, even shove that suits fast road riding far better than a peaky number would. Telelever up front, shaft drive at the back, 17-inch wheels at both ends. This is BMW building a sport-tourer that leans toward sport without surrendering the composure the badge is known for.
On the road it finds a long-legged rhythm and stays there. High-speed stability is the standout: 58.7 in of wheelbase and a chassis that simply holds its line at real touring speeds. Adjustable suspension front and rear comes from the factory, and ABS and a center stand are available as options. With 4.8 gal and 40 mpg you are looking at close to 190 miles between fills. The honest caveat is mass and upkeep: 527 lb wet, and a driveline that wants an owner who pays attention.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 98 hp (72 kW) @ 7,500 rpm |
|---|---|
| Torque | 72 lb-ft (97 Nm) @ 5,750 rpm |
| Displacement | 1085 cc |
| Engine | Flat-twin (boxer) |
| Cooling | Air/oil-cooled |
| Gearbox | 6-speed |
| Final drive | Shaft |
| Fork | Telelever |
| Front brake | 320 mm |
| Front tire | 120/70-17 |
| Rear tire | 170/60-17 |
| Wheelbase | 58.7 in (1490 mm) |
| Seat height | 31.5 in (800 mm) |
| Wet weight | 527 lb (239 kg) |
| Fuel capacity | 4.8 gal (18 L) |
| Top speed | 140 mph (226 km/h) |
| Fuel economy | 40 mpg (US) |
Equipment check
Chassis
Comfort
Safety
Over the years I have picked up a lot about this bike without asking: in the paddock, over coffee with owners, on club nights, and in the messages riders send me after they have put real miles on theirs. The picture around the R 1100 S is consistent. Owners trust it to last and enjoy how it goes down a road. The complaints are about its weight, its width and the practical side of living with it.
The most consistent praise is for build quality. Owners talk about over-engineered construction and materials that resist corrosion. High-mileage examples come up again and again, always with the condition that the maintenance was done properly. The engine comes next. Riders describe plenty of low-end grunt and a thrum with real character, and they say it makes relaxed riding and quick riding equally easy. Owners also agree on the riding position: a moderate lean and a well-padded seat that suit a winding back road as well as a long highway day. Several riders single out the Telelever front end. They say it barely dives under braking, so they can trail-brake with confidence and stay steady through corners on broken pavement. Touring owners like not having a chain to clean or adjust.
The most common gripe is weight. Riders say it feels heavy next to the Japanese sport-tourers of its day, and they notice it most in tight turns. At walking pace, the servo-assisted Integral ABS draws its own complaint: owners find it overly sensitive in parking lots, which makes slow maneuvers jerky. The cylinder heads stick out far enough to make filtering and tight urban gaps harder than on a narrower bike. Above 5,500 rpm, riders report a coarse buzz through the bars and pegs that wears on them over long highway stretches. Then there is fuel. Owners put realistic range at about 124 miles (200 km) from the 4.8 gal (18 L) tank. With no fuel gauge, they say longer rides need the stops planned in advance.
Final drive bearing failure
Paralever pivot bearings and final drive crown bearings can wear prematurely, especially if neglected. Symptoms include oil leaks, lateral wheel play, or rumbling noises, often appearing between 25,000 and 37,000 mi (40,000 and 60,000 km).
Clutch slave cylinder weeping
The hydraulic clutch slave cylinder is prone to weeping or leaking fluid, which can lead to a loss of clutch function. Often noticed around 19,000 mi (30,000 km), it requires inspection and seal replacement.
Low-speed surging (pre-2004 models)
Single-spark versions of the fuel-injected boxer twin can exhibit a lean surge or hesitation when holding a steady, light throttle opening in the lower midrange, felt as a gentle hunting sensation at constant speed. The later twin-spark ignition update largely resolved this behavior.
Starter motor wear
The starter motor can become sluggish or intermittent as carbon brushes wear. Cleaning the commutator and brush pack is often sufficient, but replacement may be needed past 43,000 mi (70,000 km).
Where this BMW R 1100 S 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 R 1100 S is actually built for.
You will not flick this around like something light, but it rewards a clean line and a smooth hand. Ride it on midrange and stability and it stays composed on the Dragon and the Cherohala, run after run.
Made for Tail of the Dragon · Back of the Dragon · Blue Ridge Parkway
This is your bike. Sporting enough to enjoy the Blue Ridge, stable and comfortable enough that you still want the next 150 miles, with a screen, an optional center stand and close to 190 miles of range.
Made for Highway 1 / Big Sur · Black Hills · Blue Ridge Parkway
It will cross a state in comfort, but there is no cruise control, and the luggage and heated grips were options you paid extra for. Loaded two-up for weeks, you are asking a sporting boxer to do a dedicated tourer's job.
Made for Beartooth Highway · Blue Ridge Parkway · Going-to-the-Sun Road
If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
