



The JT Sprockets JTF1381.15 sprocket is designed to replace the toothed element of the secondary transmission on 520 chains. Made from SMC420 steel, this standard 1381 sprocket offers a robust construction aimed at riders seeking reliability and longevity for their chain and sprocket.
This sprocket plays a key role in gear reduction: replacing or modifying the number of teeth allows for adjustments to the motorcycle's behavior (torque, engine speed) without touching the engine part. JT Sprockets relies on transmission-oriented expertise to offer a wear part that meets OEM tolerances.
Manufacturer part number: JTF1381.15
Common compatibilities (examples): HONDA NX 500 (2025), VOGE 500 AC (2023), HONDA CL 500 (2025). Particularly suitable for roadsters and 500 cc motorcycles equipped with a 520 chain. Always check the original reference before installation.