JT. Steel Standard 337 - 520 Output sprocketRef : JTC00363A / 1077357001

JT SPROCKETS standard steel sprocket 337 - 520 (Manufacturer part number: JTF337.12)

Drive sprocket designed for off-road motorcycles and quads, this JT Sprockets JTF337.12 is aimed at riders looking for a robust transmission part compatible with the 520 chain standard. Its 337 profile and standard version make it a straightforward replacement part to adjust the gearing and adapt the engine response on motocross tracks or trail outings.

• Material: steel (high-strength alloy)
• Number of teeth: 12
• Chain pitch: 520
• Type: 337 – standard version
• Precision machining for optimized fitting and alignment

Manufactured by JT SPROCKETS, this sprocket adheres to market standards for Quad and Cross applications. It installs on the engine sprocket and is used to modify the gearing, influencing acceleration and torque at low RPM without affecting the rear sprocket.

Common compatibility: KAWASAKI KX 125 (KX125M 2008 / KX125L 2002), HONDA TRX 250 R FOURTRAX 2WD (TE12 1989). Always check the compatibility of part numbers before installation.