K&N BM-1204 High-Flow Panel Air Filter for Select BMW R1200 / R nineT Motorcycle

Vehicle Fitment

• BMW R nineT / R nineT Pure / R nineT Scrambler / R nineT Racer / R nineT Urban GS (2014-2020)
• BMW HP2 Enduro / HP2 Megamoto (2005-2011)
• BMW R1200GS / R1200GS Adventure / R1200GS HP2 (2004-2013)
• BMW R1200R / R1200RS / R1200RT / R1200S / R1200ST (various model years 2005-2015 range depending on model) - check OEM fitment guide

Features

• High-flow pleated cotton-gauze media for increased airflow and strong filtration
• Washable & reusable - reduces recurring filter replacements and waste
• Pre-oiled and ready to install out of the box
• Application-specific sealing bead ensures precise OEM air-box fitment
• Large filtration surface area supports improved throttle response and engine breathing
• Potential for improved horsepower and torque versus stock air filter
• Long service intervals between cleanings thanks to durable pleated media
• No modification or fuel-management changes required for installation

Specifications

• Filter shape: Panel
• Material: Multi-layer cotton gauze (pleated)
• Outside dimensions: 149 mm x 89 mm (≈ 5.875" x 3.5")
• Height (thickness): 32 mm (≈ 1.25")
• Weight: approx. 0.7 kg
• Washable & reusable: Yes
• Included: 1 x air filter element + sealing grease packet
• Warranty: K&N Lifetime Limited / Million-Mile Warranty

Included Components

• 1x High-flow cotton-gauze panel air filter (pre-oiled)
• 1x Sealing grease packet (for ensuring proper air-box seal)

Product Description

The K&N BM-1204 is a high-flow replacement panel air filter engineered for a wide range of BMW motorcycles, including R nineT, R1200GS, R1200R, R1200RT, and other compatible models. It replaces the factory paper filter with a washable, reusable cotton-gauze element - designed to improve airflow into the engine, enhance throttle response, and potentially raise horsepower and torque while maintaining excellent filtration and engine protection. The pleated media offers a large surface area, contributing to longer service intervals between maintenance cycles compared to disposable filters.

Installation is simple: BM-1204 fits directly into the OEM airbox using the vehicle-specific sealing bead - no modifications or tuning changes are required. Because it is pre-oiled and ready to use, you can install it and ride immediately. Over time, the ability to wash and re-oil the filter means lower maintenance costs and reduced environmental waste. For riders seeking a durable, performance-oriented, yet OEM-compatible air-filter upgrade for their BMW motorcycle, BM-1204 is a reliable, long-lasting choice backed by K&N's lifetime warranty.