Genuine Trek partPlease use the Trek Gear Hanger Identification chart to help identify the correct gear hanger for your bicycle.Fits the following models:2021 Trek Powerfly2020 Trek Powerfly2019 Trek Powerfly2019 Trek Procaliber2018 Trek Procaliber2017 Trek Superfly 135x52017 Trek Superfly 142x122017 Trek ProCal2017 Trek 9202016 Trek Superfly HT 142x122016 Trek 9202015 Trek Cali Carbon 142x122015 Trek Farley 177x122015 Trek Stache 142x122015 Trek Superfly HT 142x122014 Trek Farley 177x122014 Trek Stache 142x122014 Trek Cali Carbon 142x122014 Trek Superfly HT 142x122013 Trek Stashe 7 / 8 142x12 Thru2013 Trek Superfy Elite / Pro SL 142x12 Thru
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