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ToggleSometimes, a custom motorcycle grabs your attention and won’t let go. This is what happened when I saw the two BMW K1100RS café racers from Powerbrick. They are called ‘Vengeance’ and ‘Lenience.’ These bikes are not just custom motorcycles; they are true masterpieces. They mix classic style with modern craftsmanship. Let’s see what makes these bikes so special.
The Base Bike: BMW K1100RS

The K1100RS is often overlooked in BMW’s lineup. It is known for its strong engine and long-distance riding. At the time, it was a high-tech bike. But because it is heavy and built for touring, it was not a popular choice for café racer builds. Powerbrick, however, saw a chance where others did not. They took two models from 1994 and changed them completely. Now, the K1100RS has a new life as a sleek and bold café racer.
Engine Overhaul: Power and Precision

When it comes to building café racers, many focus only on looks, but Powerbrick goes further with real engine upgrades. Both bikes have ported heads for better airflow and more efficient combustion. They’ve also added a high-performance NGK ignition system for precise and steady firing. One key upgrade is the hydraulic clutch conversion, replacing the old cable system. This makes the clutch action smoother and easier to use.
The exhaust system is a highlight too. Powerbrick gave each bike hand-welded, stainless steel four-into-one headers. These are topped with custom-made mufflers from MAD Exhausts. The result is a deep, strong sound that matches the raw look of the bikes.
Chassis and Suspension: Built for Precision

Upgrading the chassis and suspension was key to turning the K1100RS into a responsive café racer. Powerbrick made sure not to cut corners here. They replaced the stock front forks with those from the BMW S1000RR, which is a big performance boost. One bike uses Bitubo cartridges, and the other has parts from the BMW M1000RR. This gives the front end better stability and feel.
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The rear suspension got a similar upgrade. They used fully adjustable shocks from TFX Suspension. This change not only makes the ride smoother but also sharpens the handling, making the bikes quick and agile. For the final touch, Powerbrick chose billet aluminum wheels from AC Schnitzer, originally made for the BMW R nineT. These wheels, along with Brembo brakes, provide strong and reliable stopping power, matching the bikes’ aggressive look.
Aesthetic Mastery: Form Meets Function

Building a true café racer is about both performance and style. Powerbrick’s builds deliver on both fronts. They created a new seven-part subframe for each bike, made from solid aluminum billet. The design is sleek and holds the custom seat, a small rear cowl, and a built-in taillight. It’s a clean and smooth look that shows their attention to detail.
The seat upholstery, crafted by Silvermachine, adds a classy touch. It’s simple yet comfortable, fitting the bike’s overall style. Royal Kustom Works did the paint job, making the bikes stand out without being flashy. One bike has a classic red and white Marlboro-inspired design. The other features a sleek black finish. These paint choices give a nod to racing history and look timeless.
Modern Tech, Vintage Feel
Powerbrick has found the perfect balance between vintage style and modern features. Each bike comes with a Motogadget M-unit, providing a fully updated electrical system with Bluetooth control. This upgrade makes the electrics reliable and efficient without losing the classic look.
The headlights are sleek Koso LEDs, which give bright light while keeping a retro feel. The cockpit includes clip-on handlebars, Motogadget push buttons, and bar-end turn signals. These high-quality parts look great and work well together.
Attention to Detail: The Powerbrick Touch
It’s the small details that make a build truly great, and Powerbrick got it right. They added custom gas caps, branded air filters, and neatly routed brake lines. Each part shows careful thought and effort. Even the cooling system was upgraded with RC Racing aluminum radiators and SamcoSport silicone hoses. These changes prove they didn’t cut any corners for performance and reliability.
Final Verdict: A Pair of Modern Classics
In the world of custom café racers, many bikes focus on looks alone. But these two BMW K1100RS café racers from Powerbrick are different. They look amazing and are built with high-quality engineering for lasting performance.
These bikes are not just for show. They are carefully crafted, reflecting the builders’ passion and skill. Anyone who loves motorcycle customization will see that these bikes blend classic design with modern upgrades. Powerbrick took an underrated BMW model and turned it into something special.
Among many custom motorcycles, ‘Vengeance’ and ‘Lenience’ stand out. They are true originals, capturing the café racer spirit with a perfect mix of tradition and new ideas.