Product Description Specifications:Function:removal & installation of bottom brackets, installation & removal of center lock lockringsTool Type:Special tool, socketType:multi-toothDrive:Square 3/8"Compatibility:Shimano BB80, BB5700, XT BB70, BB51 / Campagnolo, Chris King, FSA MegaExo, Hope, SRAM / Truvativ GXP, Race Face X-Type, Surly, Wheels, Fulcrum / Center Lock Rings / Bafang BBSH, BBS02Size:16 notches; outer diameter 44 - 45 mm, inner diameter 42.7 mmTechnical Information:Material:aluminiumFeatures:bottom bracket tool for bottom brackets with 16 notches and outer diameter 44 mm, e.g. Shimano BB80, BB5700, XT BB70, BB51 and olderalso suitable for threaded bearing cups from Campagnolo, Chris King, FSA MegaExo, Hope, SRAM / Truvativ GXP, Race Face X-Type, Surly, Wheels, Fulcrum and others.can also be used for lockrings on center lock brake rotorscan also be used for Bafang BBSH, BBS02 mid-motor lockringsCNC precision-machinedanodised and laser engraved for easy identificationcompatible with ParkTool BBT-RS tool holding systemManufacturer Number:BBT-69.4 Contents:1 x Order Together:Optional accessories: BBT-RS Bottom Bracket Tool Retention System Manufacturer: Park Tool Company 1185 Eagle Lake Rd Shoreview MN 55126 USA info@parktool.com Distributor: GROFA Action Sports GmbH Otto-Hahn-Straße 17 65520 Bad Camberg Germany info@grofa.com