



JT SPROCKETS ultra-light aluminum sprocket 853 - 520 (JTA853.43BLK) — a reference for motocross riders looking for a lightweight and refined transmission part. Machined from aerospace aluminum 7075-T6 (Ergal), this sprocket combines strength and a polished finish to tackle mud and tough terrains without compromising on mounting ergonomics.
Designed for off-road practices, this JT Sprockets sprocket fits 520 pitch chains and is aimed at riders concerned about the reliability of their transmission. Its lightweight design aims to reduce rotating mass without sacrificing the mechanical integrity of the Ergal, while the finish helps to shed mud for easier maintenance.
Common compatibilities: Yamaha YZ 400 F (1998), Yamaha WR 400 F (1998), Yamaha YZ 250 (1998) — check the manufacturer reference before installation. Ideal part for replacement or changing gear ratios on motocross machines, delivered ready to install.