Product Description Steel Front Sprocket. CNC machined to extremely tight tolerances. Case hardened and core refined alloy steel that gives you the best strength and durability. RFX Front Sprocket - 12T at Motosport Browse all Motosport deals $18.99 In Stock at Motosport Price verified 2d ago Buy Now at Motosport Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand RFX Gender Unisex Condition New MPN FXFS 58-12 55ST RFX