This is an FSA H2037 Headset Top Cap with an O.D. of 47mm for the following Specialized bikes: 2019 Epic HT Men Comp Carbon 29 2019 Epic HT Men Expert Carbon 29 2019 Epic HT Men Pro Carbon 29 2019 Epic HT Men S-Works Carbon 29 Frameset 2019 Epic HT Men S-Works Carbon Sram 29 2019 Epic Men Comp 29 2019 Epic Men S-Works Carbon EVO 2019 Epic Men S-Works Carbon Sram 29 2019 Epic Men S-Works Frameset LTD 2019 Epic Women Comp 29 2019 Epic Women S-Works Carbon 29 2018 Epic HT Men Comp Carbon 29 2018 Epic HT Men Comp Carbon 29 2X 2018 Epic HT Men Expert Carbon 29 2018 Epic HT Men Expert Carbon 29 - WF 2018 Epic HT Men Pro Carbon 29 2018 Epic HT Men S-Works Carbon 29 Frameset 2018 Epic HT Men S-Works Carbon DI2 29 2018 Epic HT Men S-Works Carbon LTD Frameset 29 2018 Epic HT Men S-Works Carbon Sram 29 2018 Epic HT Men S-Works Carbon Sram 29 - WF 2018 Epic HT Men S-Works Team Frameset Raw No Clearcoat 29 2018 Epic HT Women Comp Carbon 29 2018 Epic Men Comp Carbon 29 2018 Epic Men Expert Carbon 29 2018 Epic Men Pro Carbon 29 2018 Epic Men S-Works Carbon DI2 29 2018 Epic Men S-Works Carbon Sram 29 2018 Epic Men S-Works Team Frameset Raw No Clearcoat 29 2018 Epic Women Comp Carbon 29 2018 Epic Women S-Works Carbon 29 2017 Epic HT 29 2017 Epic HT ALLOY 29 Frameset 2017 Epic HT Comp Carbon 29 2017 Epic HT Comp Carbon WC 29 2017 Epic HT Expert Carbon WC 29 2017 Epic HT Pro Carbon WC 29 2017 Epic HT S-Works Carbon 29 Frameset 2017 Epic HT S-Works Carbon DI2 29 2017 Epic HT S-Works Carbon Sram 29 2016 Venge S-Works Vias DI2 USA