~ Where passion meets precision · Atelier Haarlem since 2010 ~
Yes, the Storm is E-approved (ECE certified) for both front and rear use, making it fully compliant with European road standards. This certification ensures it meets all legal requirements for street use in most countries.
The Koso Storm operates at 12V with a power consumption of just 1.8W. This low power draw makes it ideal for custom builds and minimalist motorcycle designs, reducing strain on your electrical system compared to traditional halogen turn signals.
Absolutely. The Storm is E-approved for both front and rear use, making it extremely versatile. You can install it at either end of your bike, or purchase multiple units for a cohesive lighting setup.
The Koso Storm measures 59mm long, 20mm high, and 24mm deep, with an 18mm rubber mounting stem. It features an M8 x 1.25 threaded mounting point (21.4mm length). These compact dimensions make it ideal for minimalist cafe racer and custom builds.
Yes, the Storm is universally compatible. Its M8 threaded stem and compact design make it suitable for most motorcycle platforms, including BMW classics. However, you may need an adapter depending on your bike's specific mounting configuration. We recommend checking your motorcycle's specifications before purchase.
The Koso Storm features integrated LED technology, eliminating the need for traditional bulbs. The amber LEDs are built directly into the unit and provide consistent, long-lasting illumination without replacement or maintenance.
Yes, installation is straightforward. The Storm features a universal M8 threaded stem that mounts to most standard motorcycle turn signal brackets. Basic motorcycle electrical knowledge is helpful, but many riders complete the installation in under an hour. Always consult your motorcycle's manual for specific wiring requirements.
LED turn signals offer several advantages: superior brightness and visibility, lower power consumption (1.8W versus traditional halogen), longer lifespan without burnout concerns, and a modern aesthetic that complements custom and cafe racer builds. Plus, LEDs are more reliable in various weather conditions.
More questions? View all FAQs
The Koso Storm LED turn signal is a premium lighting upgrade for custom motorcycles, cafe racers, and classic bikes. Featuring a sleek matte black metal body paired with a clear lens and amber LEDs, this universal turn signal delivers both style and functionality.
Whether you're building a cafe racer or restoring a BMW classic, the Storm provides the modern lighting performance your bike deserves.
Designed for riders who demand quality and authenticity, this E-approved turn signal meets European road standards for front and rear use. The compact design (59mm long, 20mm high) fits seamlessly into minimalist builds without compromising visibility.
With its 12V/1.8W power consumption and reliable LED technology, the Storm offers efficient, long-lasting performance compared to traditional halogen alternatives.
Installation is straightforward thanks to the universal M8 threaded stem (21.4mm length) and flexible 18mm rubber mounting stem. Sold individually, allowing you to customize your bike's lighting setup exactly as you envision it. Perfect for custom builders and enthusiasts who refuse to compromise on detail.
The Koso Storm LED turn signal is a premium lighting upgrade for custom motorcycles, cafe racers, and classic bikes. Featuring a sleek matte black metal body paired with a clear lens and amber LEDs, this universal turn signal delivers both style and functionality.
Whether you're building a cafe racer or restoring a BMW classic, the Storm provides the modern lighting performance your bike deserves.
Designed for riders who demand quality and authenticity, this E-approved turn signal meets European road standards for front and rear use. The compact design (59mm long, 20mm high) fits seamlessly into minimalist builds without compromising visibility.
With its 12V/1.8W power consumption and reliable LED technology, the Storm offers efficient, long-lasting performance compared to traditional halogen alternatives.
Installation is straightforward thanks to the universal M8 threaded stem (21.4mm length) and flexible 18mm rubber mounting stem. Sold individually, allowing you to customize your bike's lighting setup exactly as you envision it. Perfect for custom builders and enthusiasts who refuse to compromise on detail.
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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