SPROCKET XTREME ALLOY/STEEL BETA RR 125-300 2T & 350-520 4T 13-23 49T GOLD

Manufactured using a high grade C45 Medium Carbon Steel outer ring and rear face with a recessed CNC machined 2024 aluminium Inner front face for weight reduction. The outer steel section of the rear sprockets have a black polished finish and the inner aluminium face has an ELOX finish in individual OEM colours.