BMW R 100 G/S classic motorcycle for sale

Introduction and history of the BMW R 100 G/S

Launched in the late 1980s, the BMW R 100 G/S defined the travel enduro segment. It followed BMW's earlier GS concepts but upgraded to a full 1000cc boxer engine and robust mechanicals fit for serious long-distance touring. Air- and oil-cooled, with a five-speed gearbox and shaft drive, the bike quickly gained a reputation for its mix of touring comfort and off-road capability. The model, produced until 1996, shaped the expectations for adventure motorcycles, attracting both professional overland riders and everyday touring enthusiasts.

Model history

The R 100 G/S is the spiritual successor to BMW’s pioneering R 80 G/S, building on the same rugged foundation but with increased displacement and upgraded technology. Produced from 1987 to 1996, it underwent updates, such as the switch from the Monolever to the Paralever rear suspension (for better handling and reduced shaft effect). After 1996, its legacy continued, influencing later GS models in BMW’s lineup, which remain benchmarks for the adventure segment.

Highlights of the BMW R 100 G/S

Distinctive features of the R 100 G/S include its two-cylinder air-cooled boxer engine with approximately 60 hp, Cardan shaft drive, and robust steel frame. Other highlights are the 19- or 21-inch front wheels, deep touring tanks (optionally up to 43 litres), and classic BMW paint schemes like Alpina White and mystic red. The endurance-focused ergonomics, accessory luggage carriers, heated grips, and a comprehensive set of factory instruments (including rev counter and clock on some variants) offer genuine touring value.

Technical data

Special Editions and Collectible Models

Some R 100 G/S examples have been built with HPN or Acerbis oversized tanks (up to 43 litres), while others feature factory extras such as heated grips, rare instrument configurations, or unique colour schemes. Special aftermarket builds and conversions by renowned German tuners like HPN, SWT, or Touratech are particularly sought after, often incorporating rally equipment and performance-enhancing modifications.

Weak Spots and Common Issues

Common areas to check on the BMW R 100 G/S include the electrical system, specifically the alternator and wiring harness, particularly if used off-road or if the bike has seen major restoration work. Paralever models may develop play in the rear drive due to wear on the shaft or bearings. Hydraulic clutch and braking systems should be inspected, as upgrades or maintenance may have been carried out over the years. Age-related issues such as corrosion on the steel frame, gummed-up carburettors, and worn suspension (especially non-BMW aftermarket units) are also worth a careful look.

Engine and Performance, Transmission and Handling

The R 100 G/S delivers torque-rich performance with its 60 hp boxer engine, designed for robust durability and smooth running even under heavy loads. Thanks to the shaft drive, service intervals are long, and the five-speed gearbox is sturdy and well-matched to off-road as well as highway touring. The later Paralever setup improves rear suspension response and virtually eliminates shaft effect during acceleration. Drum rear brakes and single front disc are period-correct, though some examples feature modern dual-disc conversions. - BMW R 100 G/S (standard) – 998cc, 60 hp, Monolever (early), Paralever (late), 5-speed, 19/21-inch front wheel, 17/18-inch rear.

• HPN R 100 G/S – Highly modified, often with reinforced frame, oversized tanks (up to 43 L), rally equipment, Öhlins or Wilbers suspension.
• R 100 G/S Paris-Dakar conversions – Extended range build, with oversized tanks and adventure accessories.

Interior, Comfort, Exterior and Design

The R 100 G/S exhibits classic BMW styling: pronounced fuel tank, exposed boxer engine, spoke wheels, and signature colourways like Alpina White or mystic red. Factory comfort options include heated grips, alternative seat designs (solo or dual), and large windshields. Accessory luggage racks, BMW panniers, and aftermarket top case installations are common. Genuine BMW handguards and crash bars enhance off-road readiness. Material choices – like OEM powder-coated or painted frames and original BMW valve covers – complete the authentic period look.

Other relevant features

Original documentation is often available, including service book, user manual, and German Fahrzeugbrief. Most R 100 G/S examples are certified for export and are eligible for classic registration across Europe if built between 1987 and 1996. The aftermarket support for upgrades, restoration, and personalisation (from companies like Wunderlich or LSL) is particularly strong, allowing owners to tailor ride ergonomics and style.

Summary

The BMW R 100 G/S stands for uncompromising travel reliability, proven mechanics, and the freedom to adventure both on and off the road. With a production run from 1987 to 1996, it remains central to BMW’s heritage in the adventure motorcycle segment and virtually defines the classic travel enduro in the used-bike market.