BMW R100 Tracker HP by Fuel Motorcycles
The BMW R100 Tracker HP by Fuel Motorcycles is a five-month custom build by the Barcelona-based workshop Fuel Motorcycles, transforming a veteran BMW R100 airhead into a stripped, high-performance dirt tracker with a full mechanical overhaul. The bike belongs to Dave, a British customer whose R100 broke down during Fuel's own Scram Africa 2017 desert adventure race across Morocco.
Who Are Fuel Motorcycles?
Fuel Motorcycles is a custom workshop and lifestyle brand founded in Barcelona, Spain, by Karles Vives. Entirely self-taught, Vives builds a small number of bespoke motorcycles each year while also producing retro-inspired riding gear and organising the Scram Africa event: a 1,500 km scrambler adventure through Morocco that has become one of Europe's most celebrated off-road rallies. The BMW R100 that would become the Tracker HP was a Scram Africa 2017 participant before mechanical trouble during the race sent it to the Fuel workshop.
Design Direction: Dirt Tracker Aesthetic
Fuel worked closely with Dave to agree on the visual concept before a single part was changed. The chosen direction was a classic dirt tracker: compact solo seat positioned well back on the frame, a small-profile fuel tank, and a high single exhaust that sweeps up along the right side of the bike. The result is a purposeful, stripped silhouette that references American flat-track racing heritage without resorting to pastiche.
Mechanical Upgrades
The rebuild went well beyond cosmetics. Fuel fitted a BMW K75 front fork to update the handling geometry, paired it with a new brake system, and installed Mikuni carburettors for improved fuelling. Rear suspension was replaced with Ohlins units, and K&N air filters were fitted. A long list of bronze fixings, custom brackets and machined components ties the aesthetic together: speedo holder, indicator brackets, tubular subframe structure under the seat, rear frame modifications and aluminium number side panels were all fabricated to order by a specialist.
Five Months, One Satisfied Customer
The Tracker HP took five months from stripping to delivery. The combination of BMW's air-cooled boxer reliability, modern suspension, and Fuel's attention to custom detail produced a motorcycle that is both a usable road and trail bike and a coherent piece of craft. For other exceptional BMW airhead customs, explore the BMW R100 Scrambler #32 by Herencia Custom Garage and the BMW K75 Scrambler by The Foundry MC. Browse the full motorcycles collection at TheArsenale to discover more world-class custom builds.
Sources: BikeBound, Fuel Motorcycles
