JT. Steel Standard 259 - 428 Gearbox output pinionRef : JTC01105A / 1077310004

JTF259.16 — JT SPROCKETS Standard Steel Sprocket 259 - 428

JT Sprockets sprocket designed for 428 transmissions, this 16-tooth sprocket (type 259) is aimed at quad, motocross, and roadster riders looking for a reliable replacement part to modify or restore their gearing. Made from steel, it features the brand's renowned CNC machining for a precise fit and consistent tooth geometry.

• Material: steel (high-strength SMC420 alloy)
• Number of teeth: 16
• Chain pitch: 428
• Type: 259 — standard version
• CNC machining for a smooth finish

Designed to integrate into drivetrains requiring durability and longevity, this JT sprocket is suitable for routine maintenance or gearing changes. Its lightweight design aims to minimize unsprung mass without compromising strength.

Examples of compatible models (check exact compatibility with your vehicle before purchase): DERBI SENDA 125 BAJA SM 4T (2013), DAELIM VL 125 DAYSTAR (2013), SYM XS 125K 4T E3 (2011).

Manufacturer reference: JTF259.16. Be sure to check the condition of the chain and the rear sprocket when replacing to ensure smooth transmission.