Genuine Trek partPlease use the Trek Gear Hanger Identification chart to help identify the correct gear hanger for your bicycle.Fits the following models:2019 Fuel EX2019 Remedy2019 Slash2019 Top Fuel2018 Fuel EX2018 Remedy2018 Slash2018 Top Fuel2017 Ticket S2017 Top Fuel2017 Fuel EX2017 Remedy2017 Powerfly FS/LT2017 Slash2017 Session2017 Farley EX2016 Full Suspension (All) 142x122016 Full Suspension (All) 148x122016 Session 157x122015 Full Suspension (All) 142x122015 Session 157x122014 Full Suspension (All) 142x122014 Session 157x122013 Fuel EX Carbon / Aluminum 142x12 Thru2013 Remedy Carbon / Aluminum 142x12 Thru2013 Rumblefish / Elite / Pro 142x12 Thru2013 Session 9.9 157x12 Thru2013 Slash 142x12 Thru2013 Superfly 100 Carbon / Aluminum 142x12 Thru2012 Superfly 100 Carbon & Aluminum 142x12 Thru2012 Fuel EX carbon and aluminum 142x12 Thru2012 Rumblefish 1 & 2 142x12 Thru2012 Remedy carbon and aluminum 142x12 Thru2012 Slash 142x12 Thru2012 Session 9.9 157x12 Thru2011 Fuel EX carbon & aluminum 142x12 Thru2011 Rumblefish 1 & 2 142x12 Thru2011 Remedy carbon & aluminum 142x12 Thru