~ Where passion meets precision · Atelier Haarlem since 2010 ~
Yes, these turn signals are fully ECE approved for both front and rear use, meeting all European road safety standards. This certification ensures they are street-legal for use on registered motorcycles throughout Europe and most other markets.
No. The tinted glass is specifically engineered to maintain full visibility and brightness thanks to the high-power dual LED technology. The smoke tint provides an aesthetic enhancement without compromising safety or performance compliance.
The Rhombus S Dark has compact dimensions of 35 x 11.5 x 11.5 mm, making them suitable for most motorcycles including classic BMWs, cafe racers, and custom builds. However, fitment depends on your specific motorcycle model and bracket configuration. We recommend checking compatibility with your bike's existing mounting points or consulting a motorcycle technician.
The Kellermann Rhombus S Dark turn signals operate on 12V DC, which is the standard electrical system for most motorcycles. They are compatible with both standard and LED-equipped electrical systems.
LED signals like the Rhombus S Dark offer several advantages: longer lifespan (50,000+ hours), lower power consumption, faster response time, better brightness, and superior reliability. They also provide a more modern appearance while generating less heat than traditional bulbs.
In most cases, no special adapters are required if your motorcycle has an LED-compatible electrical system. However, if your bike has a traditional resistive load system or an older alternator, you may need an LED load equalizer (flasher relay) to prevent rapid blinking. We recommend consulting your motorcycle manual or a certified technician.
These are sold as indicated in the product listing (FR/RL - Front Right / Rear Left). Availability may vary. Check the product page for current stock information or contact our customer service if you need a matched pair for both sides of your motorcycle.
Kellermann is known for high-quality German engineering and typically provides a manufacturer's warranty on their products. Please refer to the warranty information provided with your purchase or contact Dapper Motor customer service for specific details about coverage and claims procedures.
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The Kellermann Rhombus S Dark turn signal combines sleek design with cutting-edge LED technology, making it the perfect choice for custom motorcycle builders and cafe racer enthusiasts. With its distinctive black housing and deeply tinted glass, this signal offers a modern aesthetic that complements both classic and contemporary builds while maintaining full ECE approval for both front and rear applications.
Engineered with high-power dual LED technology, the Rhombus S Dark delivers exceptional brightness and reliability in all lighting conditions. The compact dimensions of 35 x 11.5 x 11.5 mm make these signals versatile enough to fit various motorcycle platforms, from BMW K-series classics to custom cafe racer projects.
The tinted lens design provides that coveted 'smoked' appearance without compromising visibility or safety compliance.
Whether you're restoring a vintage BMW or building a ground-up custom motorcycle, these Kellermann signals offer German engineering quality with the distinctive style that separates show bikes from the rest. ECE certification ensures your bike remains street-legal while delivering professional-grade lighting performance.
The Kellermann Rhombus S Dark turn signal combines sleek design with cutting-edge LED technology, making it the perfect choice for custom motorcycle builders and cafe racer enthusiasts. With its distinctive black housing and deeply tinted glass, this signal offers a modern aesthetic that complements both classic and contemporary builds while maintaining full ECE approval for both front and rear applications.
Engineered with high-power dual LED technology, the Rhombus S Dark delivers exceptional brightness and reliability in all lighting conditions. The compact dimensions of 35 x 11.5 x 11.5 mm make these signals versatile enough to fit various motorcycle platforms, from BMW K-series classics to custom cafe racer projects.
The tinted lens design provides that coveted 'smoked' appearance without compromising visibility or safety compliance.
Whether you're restoring a vintage BMW or building a ground-up custom motorcycle, these Kellermann signals offer German engineering quality with the distinctive style that separates show bikes from the rest. ECE certification ensures your bike remains street-legal while delivering professional-grade lighting performance.
Delivery time: 3–5 business days
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