The CRS-1 offers a faster, safer, and more precise installation. The bearing surface is spared a direct hit by using different inserted setting rings to ensure proper fit on the race. Choose the correct setting ring, then slide the tube over the fork tube and into the top end of the ring. Using a hammer, tap firmly on the end cap of the tube and seat the race into its proper place safely and accurately. The CRS-1 set includes one universal setting tube, three 1" setting rings, and three 1-1/8" setting rings. NOTE: The 838 setting ring for certain Trek&erg; and Klein® carbon forks is not included with the CRS-1. 2.7 lbs.