This is a derailleur hanger for the following Cannondale bikes: 2017-2018 Adventure 2016-2018 Althea 2016-2018 Bad Boy 2, 3, 4 2016-2018 Catalyst 2015-2016 Contro 3, 4 2017-2018 Cujo 2017-2018 Foray 2018 Kids Quicks 2018 Kids Trail 20 & 24 2018 Kids Cujo 20 & 24 2014-2017 Kids Race 24 2014-2017 Kids Trail 24 2014-2017 Kids Street 24 2016-2017 Law Enforcement 2018 Mavaro Neo 1, 3 2016-2018 Quick 2015-2018 Quick CX 2018 Quick Neo 2018 Scarlet 2016-2018 Tango 2018 Tesoro Neo 2015-2018 Trail *Note: Color based on production batch. Hanger may be either silver or black, depending on production date. If you want a specific color, please contact us for in stock availability.