JT. Steel Standard 742 - 520 Gearbox output pinionRef : JTC01139A / 1077476001

JT SPROCKETS JTF742.15 — Standard steel front sprocket 742 for 520 chain, 15 teeth. Designed for riders seeking a robust and reliable transmission part, this JT Sprockets sprocket is aimed at roadsters and sporty machines where gearing plays a key role.

• Material: steel (high-strength SMC420 alloy)
• Machining: CNC finish for precise tooth profile
• Number of teeth: 15
• Chain pitch: 520
• Type / Version: 742 — standard version

The JTF742.15 offers precision-machined teeth to ensure consistent contact with the chain, limit premature wear, and guarantee longevity in line with JT standards. By changing this sprocket, you can adjust the gearing according to your needs (torque/idling/extension), while maintaining a geometry compatible with the setups intended for this type of reference.

Notable compatibilities: DUCATI 950 HYPERMOTARD SP (2025), DUCATI 950 HYPERMOTARD RVE (2025), DUCATI 950 HYPERMOTARD (2025). Brand: JT SPROCKETS. Manufacturer reference: JTF742.15.