Ultra Lightweight Whistle Switch Lever

At ThruAxle.com, we always encourage riders to regularly inspect and maintain their bikes. A well-maintained bicycle performs at its best and can last for decades—keeping you safe on every ride. But sometimes, even that isn’t enough.

For riders who venture into more aggressive terrain, the unexpected is part of the adventure. Whether you’re threading through dense woods or tackling technical trails, it helps to have a little extra backup. That’s why we recommend keeping this compact, loud Whistle Lever onboard at all times—just in case something happens and help is needed.

Weighing in at just 16 grams, this short, powerful audio signal is perfect for:

✅ Locating crashed or separated riders
✅ Serving as an alternative race start signal
✅ Helping with safe re-entery to the track
✅ Alerting pedestrians or animals ahead of you

And here’s a fun detail:
when the tip is facing forward and you pick up speed, it might just catch the wind and sound on its own—a unique safety feature to help alert people or wildlife up ahead.