JTF1256.14 — JT SPROCKETS Standard Steel Sprocket 14 Teeth (420)

Designed for the transmission of off-road machines, this JT Sprockets sprocket combines durability and precision machining. Made from high-strength SMC420 steel and CNC machined, it offers a consistent tooth profile and reliable finish for 420 chain drives. Ideal for motocross, it is a standard replacement sprocket intended to maintain the original gearing or to slightly modify engine behavior depending on the setup.

• Material: high-strength SMC420 steel
• Number of teeth: 14
• Chain pitch: 420
• Type / reference: 1256 / JTF1256.14
• CNC machining for precise tooth profile and optimized lifespan
• Version: standard — lightweight and robust design

Compatible with the listed motocross machines and usable as a replacement part on many 50–70 cc models. Examples of applications include: HONDA CRF 50 F (AE04, AE03) and HONDA CRF 70 F (DE02). Always check the chain pitch, number of teeth, and center distance before installation to ensure proper fit and transmission safety.