Continental ContiTech Valve Extender

No, these are designed for tool-free installation. You simply unscrew the valve core from your tube, screw the extender onto the valve stem, and then reinstall the valve core into the top of the extender.

They are compatible with most standard Presta valves that feature a removable core. Please ensure your specific inner tube valve has a removable core before purchasing, as this is required for the extender to function properly.

Yes, the threaded seal design creates a secure, airtight connection when installed correctly. We recommend using a small amount of plumber's tape on the threads if you want extra peace of mind against slow leaks.

The 60mm length is typically ideal for mid-to-deep section rims, generally ranging from 40mm to 50mm in depth. You want enough of the extender protruding from the rim to easily attach your pump head, so measure your rim depth and add at least 15-20mm to determine the minimum length you need.

Yes, this product is sold as a pair, so you will have enough to equip both your front and rear wheels.