These suspension bearing removal pilots are sized according to bearing Inside Diameter. Many of these individual pilots cover several bearing sizes (please see the application chart in the accompanying pictures). These redesigned extraction guides have a shortened pilot allowing for the increasingly tight spaces inside of suspension bearing linkage assemblies. Manufactured in the USA. These guides are part of the "Modular Series" of suspension bearing tools by Real World Cycling. NOTE: "SBT-12-7-ID" is for 12.7mm (1/2 inch) ID bearings.