Carbonin Carbon Airbox Cover BMW S1000RR K67 (2019-2022) CB4425

Carbonin's airbox cover for the BMW S1000RR K67 transforms a functional necessity into a statement of race-bred engineering. Constructed entirely from high-grade carbon fibre, part number CB4425 delivers a measurable reduction in unsprung weight without compromising structural integrity — the kind of detail that separates genuine track components from cosmetic upgrades.

Key Features

• High-grade carbon fibre construction offers an exceptional strength-to-weight ratio, reducing mass while maintaining rigidity under sustained track use
• Purpose-engineered geometry optimises airflow to the engine, supporting more efficient combustion and improved throttle response
• Precision fit developed specifically for the BMW S1000RR K67 (2019-2022) — no modification or adaptation required
• Race-quality manufacturing standards ensure dimensional accuracy and a finish that integrates seamlessly with OEM and aftermarket bodywork
• Bracket options available to suit both the standard subframe and a short subframe configuration, maintaining installation flexibility

Build Quality and Materials

Carbonin is known across the World Superbike paddock for refusing to cut corners on raw material quality. This airbox cover is no exception: the carbon fibre weave is selected for consistency and layered to meet the structural demands of sustained high-rpm use. The result is a cover that resists flex, vibration fatigue and the thermal cycling common to performance engines — properties that cheap carbon-look plastics simply cannot replicate. The surface finish is clean and precise, ready to be paired with a full Carbonin fairing kit or used as a performance-focused standalone upgrade.

Performance and Track Use

On the BMW S1000RR K67, even marginal weight savings at the front of the airbox assembly contribute to a more responsive feel through fast direction changes. More importantly, the cover's geometry has been designed to work with the S1000RR's intake system rather than against it, ensuring that air reaches the airbox efficiently at both low and high speed. This is a component developed for riders who want measurable gains, not visual theatre.

Installation Note

The airbox cover requires a dedicated bracket for correct fitment. Two bracket options are available to suit different subframe configurations. Select the appropriate bracket when ordering:

• IN404B bracket — required for the standard/original subframe
• Short Subframe Holder — required for a short subframe

The cover cannot be installed without one of these brackets. Both options are available as selectable variants at the time of purchase.

Fitment and Compatibility

This airbox cover is engineered exclusively for the BMW S1000RR K67, covering model years 2019, 2020, 2021 and 2022. It is not compatible with earlier S1000RR generations. If you are unsure which subframe your build uses, confirm before selecting your bracket option.

Specifications

• Brand: Carbonin
• Part number: CB4425
• Material: Carbon fibre
• Fitment: BMW S1000RR K67 (2019-2022)
• Bracket requirement: IN404B (standard subframe) or Short Subframe Holder (short subframe)
• Intended use: Road and track