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Demand attention wherever you ride

Weiser ULTRABRIGHTS are simply the brightest, most attractive range of turn signal upgrades you can buy. Originally created for BMW bikes, they’re now available for a wide range of motorcycles from manufacturers who’ve adopted the same ‘arrow head’ housing modules: Aprilia, Buell, KTM, Moto Guzzi, Yahama, Zero and more. So take a look around, there might just be one to fit your bike.

Not only will these turn signals improve the look of your bike, they’ll also really help get you noticed – because your safety is our ‘number one’ priority. In fact, Weiser have been making turn signal upgrades since 2007. Our ULTRABRIGHTS are a proven, superior alternative to the existing OEM bulb.

It’s no wonder WEISER ULTRABRIGHTS are so bright – instead of just one filament bulb, you’ve got lots of individual LEDs throwing out light. They’re up to 10 times brighter than the OEM incandescent bulb.

  • Up to 10x brighter
  • Plug and play
  • CANbus compatible
  • Install in minutes
  • Powered by high-intensity amber automotive LEDs (OSRAM, Samsung, Philips, Nichia)
  • Keep you safer on the road, while enhancing the look of your bike
Weiser Ultrabrights Extreme Side

Fits model years 1970-present

We have products available for current bikes (Extreme or Original+) and for earlier models (Legacy I, II and III).

Weiser Ultrabrights Legacy I Side
Weiser Ultrabrights Extreme Rear
Weiser Ultrabrights Legacy I Front
Weiser Ultrabrights Legacy I Rear

So easy to fit

These turn signals are simple to fit into your bike’s current OEM housing. Just replace the original bulb and reflector assembly – there’s no need to modify the existing wiring or housing. And they work immediately with your existing electronics.

WEISER ULTRABRIGHTS are guaranteed to operate in accordance with your motorcycle’s CANbus electronics system and are designed to comply with current automotive electronics safety standards.

Weiser Ultrabrights Fitting Instructions

Turn signal housing shapes

Weiser currently manufactures five different LED circuit board panels to correspond to the housing shapes indicated below. It is important that you identify not just the bike make and model you require, but also the shape of the OEM turn signal housing currently fitted to your bike.

If you’re unsure what shape you need, use our Part Finder to check. Still not sure? Send us a message or call +1 (831) 713-4365 and we’ll check to see if your model is compatible.

Weiser Extreme Housing Shape


The extreme (arrowhead) shape is mainly found on newer BMW, KTM, Triumph, Aprilia and many more bikes from 2006 to the present day.
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Weiser Legacy I Housing Shape

Legacy I

This slightly more curved shape was mainly used on BMW bikes from 2000 to 2014.
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Weiser Legacy II Housing Shape

Legacy II

This shape is found only on BMW ‘Oilheads’ from the 1990s to 2004.
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Weiser Legacy III Housing Shape

Legacy III

This rectangular shape is found on the BMW ‘Airhead’ motorcycles built between 1970 and 1995.
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The brightest blinkers you can buy

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Weiser Ultrabrights Blinker Comparison