The CRS-15 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. The CRS-15 will work on forks with column length of 330mm or less.
SHIS terminology: The CRS-15 services crown races in SHIS 33 and 40.