Complete BMW R18 Guide: Everything You Need to Know About the Heritage Cruiser and Its Accessories

The BMW R18 is no ordinary cruiser. With its Big Boxer of 1,802 cc, the largest production flat-twin ever built by BMW Motorrad, it embodies a German take on the Heritage cruiser, halfway between American heritage and European classic elegance. It also holds a founding place at FCR Original: it is the first model for which the workshop developed a complete accessory range. This complete guide covers the R18 technical specifications, the detail of its six versions, the FCR Original build philosophy and the full catalogue of BMW R18 accessories by FCR Accessoires: from the exhaust system to the Low Rider handlebars, including the machined rocker covers and the custom seats made in France.

BMW R18 technical specifications

The R18 entered production in 2020 as Munich's answer to the big cruiser segment. Where the R nineT and R12 play the neo-retro roadster card, the R18 commits to a low, long and massive silhouette built around a deliberately exposed engine.

The heart of the bike is its Big Boxer, an air and oil cooled flat-twin of 1,802 cc. It is the largest boxer engine ever fitted to a production BMW Motorrad, and it dictates the whole architecture of the machine. The horizontal cylinders projecting from each side of the frame are not just a mechanical choice: they are the visual identity of the R18.

• Engine: Big Boxer flat-twin, 1,802 cc, air and oil cooled
• Power: 91 hp at 4,750 rpm
• Torque: 158 Nm at 3,000 rpm
• Transmission: 6-speed gearbox, shaft drive
• Frame: double cradle steel
• Suspension: 49 mm telescopic fork at the front, single shock at the rear
• Brakes: twin 300 mm front disc, single 300 mm rear disc, ABS
• Weight: around 345 kg fully fuelled depending on version
• Fuel tank: 16 litres
• Production: since 2020

The 158 Nm of torque available from 3,000 rpm defines the character of the ride: a calm, continuous pull, typical of a cruiser, that invites you to ride low in the rev range rather than chase the redline. This is exactly the temperament the FCR Original build aims to enhance, without distorting it.

The six versions of the R18

Since its launch, the R18 has grown into a complete family, ranging from the stripped-back cruiser to the luxury grand tourer. Understanding these differences is essential before choosing accessories, because not every part fits every version.

BMW R18

The original model, and the best base for a pure, timeless build. Spoked wheels, the iconic teardrop tank, a relaxed riding position and a low, clean line: this is the authentic neo-retro cruiser of the range. Its DNA of authenticity and classic elegance makes it the ideal candidate for a Bobber, vintage custom or minimalist cruiser project.

BMW R18 Classic

The Classic adds a travel and comfort dimension to the platform. It comes with a removable windshield, side panniers, a 16-inch front wheel, a more comfortable seat and factory touring equipment. Its leaning towards cruising and long distances makes it an excellent base for a light bagger or a vintage touring build, while keeping the elegance of the R18.

BMW R18 B

The B brings the American bagger world to BMW. A large fixed front fairing, integrated audio system, hard panniers and a low, aggressive line: this is the premium bagger of the range, built for the road and grand touring. Its build leans towards a performance bagger and a high-end custom tourer, with mainly aesthetic personalisation.

BMW R18 Transcontinental

The flagship of the range, the most luxurious and best equipped version. Top case with passenger backrest, full fairing, high-end audio, complete comfort equipment and large carrying capacity: the Transcontinental targets long-distance travel. Personalisation focuses on comfort, equipment and premium aesthetics.

BMW R18 Roctane

The Roctane brings a more modern, darker and more muscular take on the BMW cruiser. A 21-inch front wheel, black rims, integrated hard panniers, Dark Chrome finishes and a stretched silhouette make it the most visually aggressive version. It is an ideal base for Club style, dark custom or performance cruiser builds with a radical look.

BMW R18 100 Years

A limited collector edition, the 100 Years celebrates the centenary of BMW Motorrad with an exclusive finish: a specific Black Chrome paint, many machined elements and high-end finishes. Aimed above all at brand enthusiasts and collectors, it lends itself to light personalisation that enhances the factory finishes.

Which R18 version to customise, and how?

Beyond positioning, each version calls for a different approach to personalisation. Here, version by version, are the most relevant FCR Original accessories and the matching collection.

• R18: the most open base. Focus on lightening the rear (Bobber seat, side license plate holder, 3-in-1 turn signals) and dressing the engine. Collection BMW R18 accessories.
• R18 Classic: travel oriented. The Bobber seat with luggage rack and the 3-in-1 rear turn signals reinforce the touring character without betraying the vintage style. Collection R18 Classic accessories.
• R18 B: a massive bagger. Accentuate the silhouette with a lightened rear fender and a repositioned plate holder, without touching the fairing. Collection R18 B accessories.
• R18 Transcontinental: luxury grand touring. Low Rider handlebars for ergonomics and the two-up seat for two-rider comfort are the most useful levers. Collection R18 Transcontinental accessories.
• R18 Roctane: a dark power cruiser. The Le Billet fuel cap and Mini Bates turn signals reinforce the dark, radical aesthetic. Collection R18 Roctane accessories.
• R18 100 Years: a collector edition. Stick to light personalisation that enhances the factory finishes rather than hiding them. Collection R18 100 Years accessories.

The FCR Original approach on the R18

The R18 holds a special place in the history of FCR Original. It is the very first model for which the workshop launched a complete accessory range, and the starting point of the FCR Accessoires adventure. The exhaust system developed for the R18 quickly became, right from its launch, one of our best-sellers, and laid the foundations of the philosophy that guides all our builds today.

At FCR Original, the workshop based in Chauvigny near Poitiers, the R18 is approached as a cruiser base to refine rather than overload. The whole range was designed with a single direction in mind: to achieve something beautiful and clean, while bringing character to the bike. The guiding idea: lighten the rear, free up the line, highlight the Big Boxer and carefully craft every machined part, without ever betraying the Heritage spirit of the bike.

The workshop's work relies on a specialised team: Alex on part design, Mathéo on shaping, Yoann on assembly and reliability, and Céline on paint and finishing. Every accessory in the R18 range is born from this process, designed to fit the original mounting points in plug and play installation, with no irreversible modification to the machine.

The bordeaux and Sport Edition builds shown in this guide illustrate this approach: a Bobber seat that slims the line, rocker covers that dress the engine, a side license plate holder that frees up the rear wheel, and an exhaust system that reshapes the side while waking up the sound of the big boxer.

R18 accessories catalogue by category

Here is the full range of BMW R18 accessories available at FCR Accessoires, organised by function. All are designed for the R18 and, unless otherwise stated, conceived as plug and play on the original mounting points.

Exhaust

The exhaust system is one of the most striking transformations on the R18, and it is also the founding part of the range: a best-seller right from launch, it marked the beginning of the FCR Accessoires adventure. The FCR Original exhaust system for the BMW R18 completely reshapes the right side of the bike and frees the deep sound of the Big Boxer, while lightening the often massive original line. It stands out with a measured sound level of 96 dB, a good balance between expressiveness and responsible use, and removable baffles that let you tune the sound. In most cases, no engine remapping is required after installation.

Cockpit

To change the riding position and the look of the cockpit, FCR Original offers several solutions. The Low Rider handlebars for the BMW R18 lower and widen the grip for an assertive cruiser style. The handlebar risers let you adjust ergonomics, and the handlebar kit with risers brings both together in a coherent set. On the brake and controls side, the master cylinder kit adds a premium machined touch to the handlebars.

Bodywork and engine

The BMW R18 rocker covers dress the ends of the Big Boxer, the most visible element of the bike, with a sturdy fibreglass construction and an engraved marking pad. The front fender and the rear fender slim the wheel arches for a cleaner look; the rear fender comes with its brackets and hardware and stays compatible with the original 16, 17, 18 and 19-inch rear wheels. On the tank side, the Le Billet cap, machined from brass and aviation-grade aluminium with a fuel-resistant O-ring and knurled sides for grip, and the Le Rippled cap replace the original filler with a machined part, available in several finishes.

Seats and upholstery

Upholstery is at the heart of turning an R18 into a stripped-back cruiser. The BMW R18 Bobber seat lowers and tightens the line for a radical solo look, and comes in two faux leather finishes: leather effect or Alcantara. The Bobber seat with luggage rack keeps that spirit while adding practical carrying capacity, with three anchor points to adjust the riding position. For two-up riding, the two-up seat offers a rider and passenger seat on a billet aluminium base plate, with integrated 3-in-1 Bates rear lights. FCR Original seats are made as part of a French upholstery partnership.

Lighting and turn signals

The front Mini Bates turn signals replace the original indicators with a complete pre-wired arch, more compact and more vintage. At the rear, the 3-in-1 Mini Bates rear turn signals combine indicator, position light and brake light in a single housing, allowing the rear to be heavily cleaned up. The universal Bates LED taillight completes the set for a café racer style of lighting.

License plate holder

Two solutions exist to clean up the rear of the R18. The standard license plate holder replaces the original holder with a more discreet cut-out plate. The side license plate holder moves the plate to the side of the rear wheel, fully freeing the wheel arch for a complete bobber look. These are two distinct parts, to choose according to the desired result.

Protection and foot pegs

The BMW R18 foot pegs replace the original parts with machined black aluminium elements, fitted on the existing mounting points. The rear footrest guard protects and dresses the passenger area. To preserve the tank paint, the universal JMP tank protector provides a non-slip protection.

Suspension

The BMW R18 rear shock absorber lets you revise the behaviour and rear height of the bike, with a remote-reservoir part supplied with its mounting hardware. It is the go-to accessory for anyone wanting to act on the chassis beyond aesthetics.

Filtration and maintenance

The K&N air filter for the BMW R18 replaces the original filter with a washable, reusable high-performance element. For its long-term maintenance, the K&N air filter cleaning kit brings together cleaner and filter oil, compatible with the K&N filters on the R18. Our dedicated guide explains how to clean a motorcycle air filter.

Mirrors

The universal HIGHSIDER Montana mirrors add a rounded retro touch that naturally suits the Heritage spirit of the R18, while staying road legal.

Navigation

The Beeline Moto II GPS Anniversary Edition offers minimalist turn-by-turn navigation, with a speed limit alert, in a compact round housing that fits discreetly into the cockpit without distorting the style of the bike.

Battery and maintenance

To preserve the battery during periods of storage, the BS15 12V intelligent battery charger provides automatic trickle charging. In case of a flat battery, the Power Box PB-02 battery booster from BS Battery allows an emergency start. These items are particularly useful for winter motorcycle preparation.

Compatibility table by version

Accessory compatibility varies by version. Bodywork and seat parts are mainly designed for the R18 and R18 Classic. The table below summarises the known compatibility. The note "Not all" means compatibility depends on the exact configuration or options of the bike: check before ordering.

If you are unsure about compatibility with your exact version, contact the FCR Accessoires team before ordering.

Customising your R18: where to start

Faced with the catalogue, one question often comes up: which accessory to fit first? The answer depends on your goal, but a few principles guide a coherent build.

For maximum visual impact, start with the rear. The Bobber seat, side license plate holder and 3-in-1 rear turn signals instantly transform the silhouette of the bike by freeing the rear wheel and lowering the line. This is the trio that takes the R18 from a stock cruiser to a custom build.

To dress the engine, the rocker covers and a machined fuel cap, Le Billet or Le Rippled, add neat finishing touches to the most exposed parts.

For a more advanced build, the exhaust system and Low Rider handlebars then reshape the profile of the bike and change the riding posture. This is the step that gives the R18 its definitive character.

If you are new to customisation, our complete guide to customising a motorcycle details the method step by step. BMW enthusiasts can also read our dedicated guides to the R nineT and the R12, as well as our first article on customising the BMW R18.

Frequently asked questions

What is the engine capacity of the BMW R18?

The BMW R18 is powered by the Big Boxer, an air and oil cooled flat-twin of 1,802 cc. It is the largest boxer engine ever fitted to a production BMW Motorrad. It delivers 91 hp at 4,750 rpm and 158 Nm of torque at 3,000 rpm, with a 6-speed gearbox and shaft drive.

What are the different versions of the BMW R18?

The R18 range includes the original R18 (pure cruiser), the R18 Classic (touring oriented, with windshield and panniers), the R18 B (bagger with large fairing), the R18 Transcontinental (luxury grand tourer with top case), the R18 Roctane (power cruiser with a 21-inch front wheel) and the limited R18 100 Years edition celebrating the centenary of BMW Motorrad.

Are FCR Original accessories for the BMW R18 compatible with every version?

Compatibility depends on the accessory. Parts such as fuel caps, rocker covers, foot pegs, the K&N air filter or the master cylinder kit suit the whole range. Bodywork and seat parts such as the Bobber seat, fenders, handlebars or exhaust system are designed for the R18 and R18 Classic and do not fit the faired B and Transcontinental versions. On the Roctane, some parts are not compatible. Check the compatibility table before ordering.

Are FCR Original accessories for the R18 plug and play?

Yes. FCR Original accessories are designed to fit the original mounting points of the R18, with no irreversible modification to the bike. The indicators and lights are pre-wired, the seats mount on the original base plate and the machined parts reuse the BMW fixing points. Instructions are supplied with the parts that require them.

Which accessory should you start with to customise a BMW R18?

For a first transformation, lightening the rear has the most visual impact: the Bobber seat, side license plate holder and 3-in-1 Mini Bates rear turn signals instantly reshape the silhouette. The rocker covers and the Le Billet or Le Rippled fuel cap then add neat machined touches. The exhaust system and Low Rider handlebars complete a more advanced build.

Are FCR Original accessories for the BMW R18 made in France?

Yes. FCR Original parts are designed and manufactured in the FCR Original workshop in Chauvigny, near Poitiers. The seats are produced in partnership with a French upholstery workshop. Some parts from partner brands such as K&N, BS Battery, JMP and HIGHSIDER complete the range.

Is the FCR Original exhaust system for the R18 road legal?

The FCR Original exhaust system for the BMW R18 has a measured sound level of 96 dB and features removable baffles to adjust the sound. Homologation and road-use conditions vary by country and applicable regulations. Check with FCR Accessoires and your local regulations before fitting it for road use.

Can you fit FCR Original accessories on your BMW R18 yourself?

Many FCR Original accessories are designed for plug and play installation, with hardware and brackets supplied, which allows home fitting for a hands-on rider. For more technical items such as the exhaust system, chassis parts or wiring, it is recommended to use a professional or a partner workshop.

What is the difference between an R18 Bobber build and a Touring build?

A Bobber build aims to visually lighten the bike: solo seat, shortened fenders, side license plate holder and compact turn signals. A Touring build instead favours comfort, protection and load capacity, with a more accommodating seat, luggage accessories and optimised ergonomics such as the Low Rider handlebars.

How do you care for a faux leather or Alcantara seat on a BMW R18?

Faux leather is easy to clean with a soft cloth and a product suited to synthetic materials. Alcantara needs a little more care: a soft brush, a dedicated textile product and air drying. In all cases, avoid aggressive solvents and direct high-pressure cleaning on the seat.

Why choose FCR Accessoires

FCR Accessoires is the online store of FCR Original, a motorcycle build workshop based in Chauvigny, near Poitiers. Every accessory in the R18 range was born in this workshop, designed and tested on real builds before being offered for sale.

• French design and manufacturing: FCR Original parts are designed and produced in France, with genuine machining and finishing expertise.
• Plug and play installation: the accessories fit on the original mounting points, with no irreversible modification to the bike.
• Parts tested in the workshop: each accessory is validated on real builds by the FCR Original team, from design to assembly.
• Recognised partners: the range relies on reference brands such as K&N, BS Battery, JMP and HIGHSIDER to complete the in-house parts.

Max · Webmarketing Manager · FCR Original · 28 April 2026