JT. Steel Standard 1901 - 520 Gearbox output pinionRef : JTC00327A / 1077297001

JT SPROCKETS - Standard Steel Sprocket 1901 - 520 (manufacturer part number: JTF1901.12) is a robust sprocket designed for chain transmissions of quads, motocross bikes, and roadsters. Designed for replacement or to modify the gearing ratio, it easily integrates into setups equipped with a 520 pitch.

• Material: high-strength steel (construction designed to last)
• Number of teeth: 12 teeth
• Chain pitch: 520
• Type / version: 1901 - standard version
• Machining: CNC finish for precise profile and controlled heat buildup

This JT Sprockets sprocket meets the demands of riders: reliability, meticulous machining, and compatibility with common 520 chains. Its profile allows for good chain engagement and predictable behavior during both start-up and high-speed operation, while also facilitating maintenance and replacement in the field.

Compatible universes: Quad, Motocross, Roadster. Examples of applications (representative models): KTM 450 SX-F (2025), HUSQVARNA FC 450 (2025), GAS GAS MC 450 F (2025).

A simple choice for those looking to replace a worn sprocket or adjust the gearing ratio without compromising on machining quality.