
RFX Race Sprocket 13 Teeth — a front sprocket designed for motocross bike transmission that emphasizes machining precision and material robustness. CNC machined from alloy steel, it is case-hardened to 60 Rockwell to provide good wear resistance and withstand the stresses of the terrain and repeated chain changes.
Ideal for teams and riders looking for a durable and precise front sprocket for their motocross outings. Its case-hardened steel finish ensures increased longevity against chain abrasion and muddy track conditions. Compatible with 520 transmissions, it fits the small displacement motocross bikes listed below.
Main compatibilities:
Manufacturer reference: FXFS 80-13 55ST