
EK/PBR 428DEH 13/69 chain kit designed to replace your transmission on lightweight roadsters all at once. This kit combines a 428 pitch chain with a 13-tooth sprocket and a standard 69-tooth steel rear sprocket, offering a robust and simple solution to restore a reliable drivetrain. Manufactured in accordance with EK JAPAN standards, the ECO Series range emphasizes efficiency and value for money.
Ideal for riders looking for a complete transmission overhaul without complicating their lives. Compatible with several lightweight roadsters — notably APRILIA RX 125 (2023-2025) — this kit is suitable for standard replacements. Installation and adjustment should follow manufacturer recommendations to ensure optimal chain tension and lubrication.