JT. Steel Standard 259 - 428 Gearbox output pinionRef : JTC00336A / 1077310003

JTF259.15 - JT Sprockets Standard Steel Sprocket 259 - 428

The JT Sprockets part number JTF259.15 is designed for riders seeking a reliable transmission part for quads, motocross, or roadsters. Made from high-strength steel and precision machined, this 15-tooth sprocket adheres to the 428 chain pitch and the 259 standard for integration into drivetrains equipped with this configuration.

• Material: steel (high-strength alloy)
• Number of teeth: 15
• Chain pitch: 428
• Type / Reference: 259 · JTF259.15
• Version: standard, CNC machining

Whether you are changing the gearing to favor acceleration or replacing a worn sprocket, this JT Sprockets model offers a lightweight and optimized design that minimizes premature chain wear. The CNC machining and quality of the alloy contribute to precise tooth geometry, which is important for clean engagement and consistent contact with the chain.

Examples of applications: DERBI SENDA 125 BAJA SM (2013), DAELIM VL 125 DAYSTAR (2013), SYM XS 125K 4T (2011). Always check compatibility with your transmission before installation.