~ Where passion meets precision · Atelier Haarlem since 2010 ~
Yes, these turn signals are fully ECE-certified, making them street-legal throughout Europe. ECE certification ensures they meet all European safety and performance standards for motorcycle lighting.
Absolutely. The Kellermann Rhombus S Extreme is ECE-approved for both front and rear use, offering flexibility in your custom build. You can install them as front right or rear left, or mix and match depending on your motorcycle's design.
High-power dual-LED technology provides enhanced brightness and redundancy. If one LED fails, the other continues operating, ensuring your indicators remain functional. This design also delivers more consistent and uniform light distribution compared to single-LED alternatives.
The Kellermann Rhombus S Extreme requires 12V, which is the standard voltage for modern motorcycles. Ensure your bike's electrical system is properly maintained for optimal performance.
At just 35 x 11.5 x 11.5 mm, these indicators are extremely compact. Their small footprint makes them ideal for minimalist cafe racer builds and custom BMWs where space is limited and clean aesthetics are paramount.
Installation is straightforward for most motorcycles with standard wiring. You'll need to connect the turn signal wires to your bike's electrical system. If you're unfamiliar with electrical work, consult your motorcycle's manual or seek professional installation to ensure proper safety and function.
ECE (Economic Commission for Europe) certification means the turn signals meet strict European safety and performance standards. They've been tested for brightness, durability, color accuracy, and electrical safety. ECE-certified indicators are legal for road use across Europe.
The Rhombus S Extreme offers universal fitment with its compact design and standard 12V connection. Most classic BMW motorcycles (K-series, R-series) can accommodate these indicators. However, we recommend checking your specific model's mounting points and wiring configuration before purchase.
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The Kellermann Rhombus S Extreme turn signals represent premium LED lighting for custom motorcycle builds and classic bike restorations. Engineered with high-power double LED technology, these compact indicators deliver exceptional brightness and reliability while maintaining a sleek, modern aesthetic that complements cafe racers and custom BMW classics.
With ECE certification for both front and rear use, these turn signals meet European safety standards and are street-legal across the continent. The clear glass lens provides optimal light transmission, while the integrated dual-LED design ensures consistent illumination without the bulk of traditional indicator housings.
At just 35x11.5x11.5mm, the Rhombus S Extreme fits seamlessly into minimalist custom builds where space and style matter.
Perfect for builders seeking reliable, regulation-compliant lighting that doesn't compromise on aesthetics. Whether you're refreshing a vintage BMW K-series or crafting a modern cafe racer, these indicators deliver function and form in one compact package.
The Kellermann Rhombus S Extreme turn signals represent premium LED lighting for custom motorcycle builds and classic bike restorations. Engineered with high-power double LED technology, these compact indicators deliver exceptional brightness and reliability while maintaining a sleek, modern aesthetic that complements cafe racers and custom BMW classics.
With ECE certification for both front and rear use, these turn signals meet European safety standards and are street-legal across the continent. The clear glass lens provides optimal light transmission, while the integrated dual-LED design ensures consistent illumination without the bulk of traditional indicator housings.
At just 35x11.5x11.5mm, the Rhombus S Extreme fits seamlessly into minimalist custom builds where space and style matter.
Perfect for builders seeking reliable, regulation-compliant lighting that doesn't compromise on aesthetics. Whether you're refreshing a vintage BMW K-series or crafting a modern cafe racer, these indicators deliver function and form in one compact package.
Expected back in stock around 17 July 2026
Temporarily out of stock. Leave your email and we'll notify you when it's back.
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