Wolf Tooth Premium Headset - ZS44/ZS56 Olive MFPN=HQ6031-10 Pressure Relief Valves eliminate unwanted

Pressure Relief Valves eliminate unwanted air pressure build up in the lower leg caused by variations in altitude or temperature

Includes everything you need to easily upgrade current Bottle and Cage from 4-strap Torpedo Mini Mount

Two cartridges included

1 Spacer Black

SRAM DUB technology creates a lighter stiffer and stronger crankset

Wolf Tooth Premium Headset - ZS44/ZS56 Olive MFPN=HQ6031-10 Pressure Relief Valves eliminate unwantedWolf Tooth Premium Headset ZS44 ZS56 Olive. Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and feature high end bearings made by Enduro. They are engineered to use the largest possible ball size and are filled with high pressure waterproof lubricant. A pair of dual lip seals ride in micro grooves to keep out water and debris. Uppers and lowers sold together as a set Enduro stainless steel sealed bearings and O ring seals