PDW Alexander Graham Headset Mount Bell

The Alexander Graham bell is designed specifically for bicycles with a standard 1-1/8 inch threadless headset. It replaces one of your existing headset spacers, so ensure you have enough steerer tube length to accommodate the bell's stack height.

You will need to loosen your stem bolts to remove the top cap and slide the bell onto the steerer tube. While it is a straightforward installation, you should be comfortable adjusting your headset tension and stem alignment before attempting it.

Because it is crafted from brass and mounted directly to the frame, the bell produces a clear, resonant, and sustained tone. It is generally louder and more distinct than many plastic or smaller aluminum bells, making it highly effective for alerting pedestrians.

Yes, it is compatible with carbon steerer tubes. However, always ensure you follow your stem manufacturer's torque specifications when tightening the bolts to avoid damaging the steerer.

Since this bell replaces a headset spacer, it sits below your stem. It should not interfere with most out-front computer mounts, but if you use a stem-cap mounted computer, you will need to choose between the two accessories.