The CRS-15.2 uses two different insert rings to install bearing races on the 1.5` and 1-1/4` forks The bearing surface is spared a direct hit by using an aluminum inserts Using a hammer, tap firmly on the end cap of the tube and seat the race into its proper place safely and accurately. Included extension allows work on fork steering tubes up to 425mm Crown Race Setter CRS-15.2UPC/EAN/GTIN: 763477002174