K&N High Flow Air Filter for BMW R1100S Motorcycle - Street
K&N High Flow Air Filter for BMW R1100S Motorcycle - Street
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Description
K&N Powersports High-Flow Air Filter
Upgrade your machine’s performance with a K&N High-Flow Powersports Air Filter. Designed to increase airflow while providing superior filtration, these premium reusable filters help your engine breathe better for improved horsepower, throttle response, and overall performance.
Built with oiled cotton gauze media, K&N filters capture dirt and debris while allowing more air to reach the engine compared to traditional paper filters. The result is better performance and long-term reliability for motorcycles, ATVs, UTVs, and other powersports machines.
Unlike disposable filters, K&N air filters are washable and reusable, helping reduce maintenance costs over time. With proper cleaning and oiling, one filter can last for the life of your vehicle.
Key Features
High-flow design improves airflow and engine performance
Superior filtration protects your engine from dirt and debris
Washable and reusable for long-term value
Durable oiled cotton gauze construction
Direct OEM replacement for easy installation
Designed specifically for motorcycles, ATVs, UTVs, and other powersports applications
Why Choose K&N?
K&N is a global leader in high-performance filtration, trusted by riders and racers worldwide. Their powersports air filters are engineered to deliver maximum airflow without sacrificing engine protection, helping you get the most out of your ride.
Technical Specifications
- MFG. Part Number DU-9001
Vehicle Information
BMW R1100S Motorcycle - Street (1998-2005)
The BMW R1100S, produced from 1998 to 2005, is a distinctive sport-tourer powered by a 1,085 cc flat-twin "oilhead" boxer engine. This air-cooled cylinder and oil-cooled head engine consistently delivered 98 horsepower and 97 Nm of torque, paired with a six-speed transmission.
A key mid-cycle enhancement occurred from December 2002 (for 2003-2005 models), introducing dual ignition with two spark plugs per cylinder to address engine surging. The core engine specifications remained consistent.
Throughout its production, the R1100S was offered in a Standard model, the R1100S Sport (featuring stiffer suspension, a steering damper, and a wider rear wheel), and from 2003 to 2005, the track-focused BoxerCup Replika (BCR). The BCR included performance upgrades like Laser exhausts, braided brake lines, carbon-fiber components, Öhlins suspension, and a shorter paralever torque arm for quicker steering. Later Sport and BoxerCup models also featured matte black engines with silver cylinders. Q: How do I ensure I select the correct parts for my R1100S?
A: Please use the year and edition selector on this page to confirm compatibility for your specific BMW R1100S model.
Maintenance
| Component | Interval | Details |
| Initial Inspection (Break-in) | After approximately 1,000 km | Includes oil change, oil filter replacement, valve clearance check, and visual/functional inspection. |
| Engine Oil and Oil Filter | Every 10,000 km | Typically includes valve inspection and adjustment. |
| Air Filter | Every 10,000 km | More frequently if operated in very dusty conditions. |
| Spark Plugs | Every 20,000 km | |
| Belt (Generator/Poly-V belt) | Every 40,000 km | Check regularly for wear, cracks, or glazing. |
| Final Drive Oil | Every two years or every 40,000 km | |
| Brake Fluid | Annually or every 1 to 2 years | |
| Gearbox Oil | Every two years | |
| Clutch Fluid | Every four years |