Renthal Rear Sprocket Trials 520

The 7075 T6 aluminium alloy rear chainwheels are lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life. Renthal’s combination of a very high strength base material and an exceptionally hardwearing surface result in significantly increased chainwheel life over other brands.All modern Trials bikes GASGAS PRO, BETA, MONTESA 4RT, SHERCO, SCORPA, VERTIGO, TRS have the same 4 bolt fitment. 141U 520