Brompton Expander Wedge and Bolt

This is an official Brompton replacement part, the expander wedge and bolt. It's designed to securely hold the stem in place within the fork steerer tube, ensuring a stable and safe ride. Weighing just 63g, it adds minimal extra weight to your bike, making it a practical and efficient choice for Brompton bike owners.

Using this expander wedge and bolt is easy. First, locate the fork steerer tube on your Brompton bike. Then, place the expander wedge inside the tube where the stem will fit. Next, insert the bolt through the stem and into the expander wedge. Tighten the bolt gently but firmly to hold the stem in place. Make sure not to overtighten as it could damage the parts. For maintenance, periodically check the tightness of the bolt. If it seems loose, tighten it up. You can also clean the parts with a soft cloth and mild bike cleaner to keep them in good condition. This will help ensure your bike stays safe and reliable for all your rides.