JT. Steel Standard 428 - 428 Gearbox output pinionRef : JTC01400A / 1077386001

JT Sprockets Standard Steel Sprocket 428 - 12 Teeth (Ref. JTF428.12)

Designed to replace the original engine sprocket or modify the gearing, this JT Sprockets sprocket is aimed at motocross enthusiasts and roadster riders looking for a robust and precise part. CNC machined from high-strength SMC420 steel, it features a consistent tooth finish for clean engagement with the 428 chain.

• Material: steel (SMC420 alloy)
• Number of teeth: 12
• Pitch: 428
• Version: standard
• Manufacturer: JT Sprockets — Ref. JTF428.12

Ideal for use on small displacement and lightweight motorcycles, this sprocket maintains a geometry suitable for the 428 chain and facilitates smooth drive. Its design, focused on machining precision, aims to reduce premature wear of the transmission when properly mounted and maintained.

Common compatibilities: SUZUKI DR-Z 70 (2015), YAMAHA YZ 80 (1980), SUZUKI JR 80 (2004). Before installation, check the number of teeth and chain pitch of your model to ensure a perfect fit.