Motorcycle Air Filter Kit K&N | Triumph Bonneville Bobber

The airbox removal kit that lets your Bobber breathe and dresses up its engine

Put together by the FCR Original workshop, this air filter kit removes the original airbox of your Triumph Bobber in favour of two exposed K&N filters. The engine breathes better and the bike gains a real vintage look, with its cone filters on show.

The K&N filters are the heart of the kit. They optimise the air intake on the throttle bodies, add a more present intake note, and are washable and reusable, unlike a paper filter you throw away.

The plates are cut from aluminium by our workshop. Once the airbox is removed, they hide the exposed electronic components and give a clean finish, as if the back of the engine had always been designed this way.

The K&N breather and its tee handle the engine gases cleanly, for a finished installation that stays true to the spirit of a proper build.

The whole kit transforms the bike's silhouette. Where the airbox used to hide everything, you now see mechanical filters and a clean line, in the purest cafe racer and bobber tradition.

This is the kind of build we carry out every day on our own machines. A kit designed, plates in hand, to fit your Triumph Bobber without improvisation.

A question about fitting or compatibility? Our FCR Accessoires team is here to help on +33 5 49 62 03 26 or by e-mail.

The advantages of the kit Air Filter K&N | Triumph Bobber

Aluminium plates designed by our workshop

Cut from aluminium by FCR Original, they hide the electronic components left exposed when the airbox is removed. A clean, integrated finish, shaped for the lines of the Bobber.

High-performance K&N filters

Two K&N filters optimise the air intake on the throttle bodies and add a more present intake note. Washable and reusable, they are serviced rather than thrown away.

A genuine vintage build look

No more airbox, in come the exposed cone filters. The kit transforms the bike's silhouette and gives it the mechanical, authentic stance of a cafe racer or a bobber.

Frequently asked questions about THE Air Filter Kit K&N | Triumph Bobber

❯ Why replace your motorcycle's original air filter?

You change the original intake first for the breathing and the style, as performance filters let the engine breathe more freely and give a mechanical look by putting the filters on show. On a neo-retro bike, removing the airbox clears the back of the engine and changes the silhouette dramatically. Quality filters that can be serviced also last over time rather than being replaced.

❯ Does an air filter kit improve performance?

It mainly improves the quality of the air intake and the perceived responsiveness, more than it transforms the power figures. The engine breathes more freely, the intake gains presence, and the whole thing is part of a coherent build. To make the most of the gain, an ECU remap is often recommended.

❯ Is this kit compatible with my motorcycle?

It is designed for the Triumph Bonneville Bobber and the Speedmaster. Two versions exist by model year, Before 2023 and 2023+, because the breather tee fitting differs. Select the version matching your year and, if you are unsure about your model, contact us and we will check for you.

❯ What does the kit contain and what is each part for?

The kit brings together two K&N filters that fit onto the throttle bodies, a K&N breather with its tee to handle engine gases, and two aluminium plates that hide the electronic components once the airbox is removed. The spacer and collar needed for fitting are also included. Everything is provided for a complete, clean transformation.

❯ How do you fit this kit?

Fitting is precise and a workshop visit is recommended. 1. Remove the original side covers and airbox. 2. Secure the plates with the original screws. 3. Drill the left K&N filter at the stated diameters to refit the original air sensor. 4. Install both filters on the throttle bodies. 5. Fit the breather with its tee and tighten the collars. On 2023+ models, the breather tee is fitted as shown in the instructions.

❯ Is this kit road legal?

Removing the airbox with open filters affects emissions and approval, and the rules vary from one country to another. Depending on your local regulations, this modification may be reserved for specific use. An ECU remap is also often recommended for optimal running. If in doubt, check before riding on the open road or ask us for advice.

French craftsmanship and know-how signed by FCR Accessories

The FCR Accessories Workshop

The artisanal heart of our expertise

All our accessories are imagined, developed and handmade in our FCR Accessories workshop, directly derived from the FCR Original preparation department. As the beating heart of our company, this workshop concentrates all the know-how of our craftsmen and technicians. Each piece is adjusted with precision, designed to combine aesthetics, performance and durability. Nothing is left to chance: from material cutting to final assembly, each step reflects the passion and high standards that have built FCR Accessories' reputation in the high-end motorcycle world.

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FAQ - DELIVERY & ORDERING

What are your shipping times?

All our orders are prepared in our workshop in France.

Shipping is carried out within 24 to 48 working hours after validation of the order.

What are the delivery times?

France : 2 to 4 working days via tracked Colissimo, Mondial Relay or UPS.

Europe : 3 to 7 working days.

International : 5 to 10 working days depending on the destination.

Do you offer order tracking?

Yes, each customer receives a personalized tracking number by email upon shipment.

You can track the progress of your package in real time.

Which carriers do you use?

We work with premium carriers (Colissimo tracking with or without signature, Mondial Relay, UPS or Fedex depending on destination and customer choice) to guarantee speed and security.

Are your products well protected?

Each order is carefully prepared and shipped in secure and discreet packaging , specially designed to protect your parts during transport.

Do you ship internationally?

Yes, we ship our products worldwide. Delivery costs and times vary depending on the destination and are indicated during checkout.

Please note that for deliveries outside the European Union (e.g., United Kingdom, Switzerland, United States, Canada, etc.), local taxes, customs duties, or brokerage fees may be applied by the authorities or the carrier. These fees are not included in the displayed price and remain the responsibility of the customer.

Please consult our FAQ section or our T&Cs to find out more.

Is VAT included in your prices?

Yes, VAT is included for all orders delivered within the European Union.

Business customers can enter their intra-community VAT number when ordering to check whether an exemption is applicable.

For deliveries outside the European Union (e.g., the United Kingdom, Switzerland, the United States, Canada, etc.), local VAT, customs duties, or brokerage fees may be charged upon arrival by the authorities or the carrier. These fees are not included in our prices.

Please consult our FAQ section or our T&Cs to find out more.

What payment methods do you accept?

We accept credit cards (Visa, Mastercard, etc.), PayPal, PayPal Express, Paypal x4 (free), Alma payment in installments, as well as other secure methods available depending on your country.

Why choose FCR Accessoires

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French manufacturing

Designed, manufactured and assembled in Poitiers, France, in our FCR Accessoires workshops, following the finest French craftsmanship standards.

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Plug & play installation

Easy and quick installation, with no cutting or welding required. Each kit includes instructions, mounting hardware and necessary accessories.

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Quality and durability

Premium materials (stainless steel, aluminium, epoxy-coated steel) and flawless finishes ensure exceptional resistance and longevity.

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Developed with passion

Every accessory stems from our FCR Original motorcycle expertise - combining performance, design and innovation.

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Worldwide delivery

Fast and secure worldwide shipping, with careful packaging and full tracking of your order.

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Passionate customer service

Our team of enthusiasts advises and supports you every step of the way, before and after your purchase.

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Exclusive expertise

Parts made with the same precision as our FCR Original motorcycles - created to enhance your machine with authenticity.

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Design and innovation

Our design and engineering teams develop exclusive accessories that combine style, ergonomics and performance.

Air Filter Kit K&N | Triumph Bobber

The airbox removal kit that lets your Bobber breathe and dresses up its engine

The advantages of the kit Air Filter K&N | Triumph Bobber