







The EK/PBR 520SRX2 13/48-114 chain kit combines an SRX2 chain with QX-Ring seals and a standard aluminium sprocket, designed for riders seeking a reliable solution for mixed use. The SRX2 series from EK CHAIN is known for its good performance-to-price ratio and its widespread use in the off-road and motocross community.
The aluminium crown lightens the overall assembly to maintain a desirable responsiveness in motocross, while the SRX2 chain and its QX‑Ring seals offer a compromise between sealing and smooth rolling. Complete kit delivered ready to install: replaces worn sprocket, crown, and chain to restore a coherent rolling train. Compatible with several models, including the FANTIC XEF 450 (2024 and 2025) — please check the exact compatibility with your machine before ordering.