Wolf Tooth Performance IS41/28.6 Upper Headset 7mm Stack Black Lightweight Aluminium Stainless Steel Bearings Wide Colour Range

These Integrated Standard (IS) headsets are for frames are for frames with molded-in internal bearing cups. Our headsets stand above the rest with three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. Lightweight, strong, and durable. 6061 Aluminum. Enduro black oxide sealed bearings included on both the upper and lower. Uppers and lowers sold separately. Compatible with any frame that uses IS (Integrated Standard) headsets with 41mm upper and 52mm lower outer bearing diameter. Made in the USA, One-Year Warranty