For Trek Stache/Superfly/Farley/ProCaliber 142mm Dropout Hardware Hanger 318001 | eBay
USADO - vendida Trek Superfly 5 17.5 M 29" 2016 Frenos xt m8000 | ForoMTB.com
Hello i am new to mountainbiking, i bought this bike a few days ago but dont really know much about bikes it is a trek superfly 5 2015. My question is :