Granite Designs Valve Extenders Roll Bags This 12 tooth pulley set

This 12 tooth pulley set with 4mm upper & 5mm lower bolt-holes is designed as direct fit upgrade for SRAM 12 speed road and gravel derailleurs

The BIO alternative for your hydration

thanks to the hermetic sealing of the HERMETIC compartment

protecting tyre and rim

There are separate functions for the front and rear wheel

Granite Designs Valve Extenders Roll Bags This 12 tooth pulley setGranite valve stem extenders allow you to extend the length of your Presta valve stems by 3 x lengths, 40mm 60mm and 80mm, making it easier to reach and inflate your bike tires. Sold in pairs, the extenders are compatible with standard Presta valves. Whether you have deep section wheels or just want a little extra reach, this valve stem extender is an easy and convenient way to ensure proper tire inflation. Features: Extended Reach: Granite valve stem