JT. Steel Standard 339 - 530 Gearbox output pinionRef : JTC01391A / 1077359003

JT SPROCKETS Standard Steel Sprocket 339 - 530 (Manufacturer Ref: JTF339.17)

Designed for riders seeking a reliable replacement for the engine sprocket, this JT Sprockets sprocket comes in the standard 339 version, intended for 530 pitch chains. Its design is aimed at easy maintenance and installation on roadster transmissions where strength and chain engagement precision are essential.

• Material: steel (SMC420 alloy according to manufacturer specifications)
• Number of teeth: 17 teeth
• Chain pitch: 530
• Type: 339 (engine sprocket)
• Version: standard
• CNC machining for precise tooth geometry and consistent finish

Suitable for replacement operations or gear ratio changes, this sprocket fits many roadster models — including several variations of the HONDA CB 1100 (SC65/SC78). Before installation, check the wear of the chain and the rear sprocket to ensure even wear and maintain the longevity of the entire transmission system.