Red anodized JT ergal rear sprocket for Beta RR 2T/4T and Xtrainer from 2013 to 2026
Not valid for RR 125 4T and RR 50 2T
Available with 46/47/48/49/50/51/52/53 teeth
JT ergal sprockets are produced in aeronautical alluminium (Ergal 7075 T6) and CNC machined for guarantee an unrivaled weight/durability ratio