Top quality headset with integrated top and bottom parts. IS42/IS60 S.H.I.S. type for the new standard of forks/head tubes with 1.8" size bottom bearing for ultra-strong application in many new Freeride/Super Enduro bikes. Storm headsets have an ultra low profile aluminum top cover and high-quality precision sealed 45/45 bearings with anti-rust titanium coating and special high-density grease protecting against water penetration. They come with two alu 7075 crown races, one for tapered 1.8" and second for tapered 1.5" forks.