
RFX Race Sprocket 15 Teeth — Manufacturer Ref: FXFS 70-15 55ST. Designed for off-road and motocross competition, this RFX front sprocket is CNC machined from durable alloy steel and case-hardened for high surface hardness, ensuring better wear resistance during intense rides.
Machined with tight tolerances, this sprocket ensures precise engagement and longevity that meets off-road demands. The RFX range incorporates heat treatments (case hardening) to enhance the durability of the tooth sides over time. Some models in the range also feature lightweight drilling to reduce unsprung mass without compromising strength.
Ideal application for motocross machines: gear ratio change to adjust acceleration and rear-end response according to your riding needs. Known compatibilities (examples): HUSABERG FE 650 E (2008), FE 550 E /6 (2008), FE 450 E /6 (2008).