Fits some Specialized Compatibility: Specialized: Chisel Series - 2018-2019 / Epic FSR Series - 2018-2019 / Epic FSR WMN Series - 2018-2019 / S-Works Stumpjumper 27.5 - 2018 / S-Works Stumpjumper 29 - 2018 / S-Works Stumpjumper ST 27.5 - 2018 / S-Works Stumpjumper ST 29 - 2018 / Stumpjumper Comp Alloy 27.5 - 2018 / Stumpjumper Comp All Note: This includes both side of the two piece dropout #323UPC/EAN/GTIN: 811079024596