BMW R 1100 spare parts

BMW R 1100 S spare parts – boxer performance between sport and touring

With the BMW R 1100 S In 1998, BMW brought a sporty offshoot of its oilhead boxer generation onto the market - half super sports car, half endurance machine, but very typically boxer. Equipped with the air/oil-cooled 1085 cm³ two-cylinder, Telelever front wheel control and Paralever rear wheel swing arm, the R 1100 S positioned itself as Sports tourer, which was supposed to close the gap between the touring-oriented R models (GS, RS, RT) and the pure four-cylinder athletes (K 1200 RS). Two main series rolled off the assembly line until 2005:

• ✓ R2S – the pre-series (1998–1999), recognizable by the yellow instrument decor, conventional injection electronics and the early M93 transmission version.
• ✓ R11S – the production model (1999–2005) with M97 transmission, modified engine electronics (MA 2.4) and optional ABS II.

The following applies to both variants: If you want to get the fascinating mix of boxer punch, long-distance suitability and easy-revving sportiness, you need tailor-made ones BMW R 1100 S spare parts. Below we look at technology, maintenance and tuning points, show differences to the sister models of the 1100 family and present the most important spare part groups.

Technology Essence – Oilhead Boxer, Telelever and Paralever

The heart of all R 1100 models is the air/oil-cooled DOHC boxer with two spark plugs per cylinder (dual ignition from 2003) and electronic multi-point injection. In the R 1100 S it produces 98 hp at 7500 rpm and 97 Nm at 5750 rpm - numbers that then as now stand for confident thrust in the middle speed range. A six-speed gearbox (M93 → M97) sends the power to the rear wheel via a cardan, while the Paralever swing arm eliminates the usual righting moment effect.

R2S (’98-’99) vs. R11S (’99-’05) – differences in detail

R2S Pre-production models can be recognized by yellow dials, cast wheels in a three-spoke design and the M93 gearbox, which has a rougher shifting feel. The Bosch-MA 2.2 injection has separate lambda sensors for each cylinder - at R11S In the series model, the MA 2.4 controls both combustion chambers synchronously, which improves consumption and exhaust emissions. In 2003, BMW introduced dual ignition and a more powerful alternator, followed in 2004 by the “Boxercup Replica” with a raised exhaust, steering damper and carbon add-on parts.

Sister models of the R 1100 family

• ✓ R 1100 GS – the Adventure predecessor: 19-inch front wheel, longer suspension travel, stainless steel case system. Engine base identical, gear ratio shorter.
• ✓ R1100R – Roadster purist: tubular handlebars, no full fairing weight, same Tele/Paralever substructure.
• ✓ R 1100 RS – Sports tourer from the first Oilhead hour, 17-inch chassis, half fairing, identical M97 gearbox.
• ✓ R 1100 RT – Full fairing with adjustable screen, highest dry weight, optional ABS II & heated grips.

These models share engine components, electrical sensors and parts of the brake system - a plus point for the supply of spare parts, because there are so many Boxer Oilhead-Components are identical across model series.

Typical weak points & preventive parts

Clutch slave cylinder can start to leak after 70,000 km - repair kits including O-rings and guide sleeves are available cheaply. Fuel pump & fuel filter sit in the tank; Regular replacement prevents pressure drops. Hall sender (Pulse generator) ages thermally - a modern Hall sensor with a silicone cable is a sensible investment.

Spare parts logistics – BMW OEM, dealer network & aftermarket

BMW keeps many components for 15 years after the end of production; There is also a dense network of parts dealers and specialized oilhead restorers. Wear parts (brake pads, filters, seals), electrical components and complete clutch sets can also be found from renowned aftermarket producers such as TRW-Lucas, EBC, NGK or Mahle.

Value development & collector factor

The price of the R 1100 S is currently between the R 1100 RS and the coveted R 1200 S. Well-maintained R2S pre-production machines or late double-ignition Boxer Cup replicas achieve moderately increasing prices, especially with documented service history and traceable use of OEM spare parts.

Conclusion – spare parts as the key to the Boxer fascination

Whether R2S pre-series or mature R11S double ignition - the BMW R 1100 S remains a sports tourer full of character. Thanks to the wide spare parts pool, cross-model Boxer technology and committed community, almost every component can be preserved or refined. Who on BMW spare parts in original equipment manufacturer quality sets, retains the rich punch, the precise Telelever feedback and the unique mix of sport and long distance that the R 1100 S has stood for for 25 years.

Keep your boxer fit – with high-quality ones BMW R 1100 S spare parts The mix of sportiness and love of travel will continue to be a guarantee for unadulterated driving fun in the future.