Backed by a 110-year warranty and constructed in Fletcher, NC, the 110-Series headset is designed with no compromises in quality, durability, or finish quality. External cups press directly into the frame's head tube.Features-Sealed stainless steel bearings-7075 T-6 aluminum cups machined in Fletcher, NC-Aluminum dual seal crown race protects lower bearing-110 year warrranty-Compatible with tapered 1-1/8" to 1-1/2" steerer tubes, or straight 1-1/8" steerers with a conversion crown race (sold separately)Item Specifications-Bearing Type:Cartridge-Color:Black-Lower Stack Height:12 mm-Weight:58 g-Crown Race:40-S.H.I.S Lower:EC44