



JT SPROCKETS Standard Steel Sprocket 1129 - 420 (Manufacturer Part No: JTF1129.12)
Transmission sprocket designed by JT Sprockets for urban and cross riders looking for a robust and precise part. CNC machined from high-strength SMC420 steel, this 12-tooth sprocket with a 420 pitch meets the demands of the chain and standard gearing. Its lightweight design minimizes unsprung masses while maintaining the rigidity necessary for reliable transmission.
Ideal for replacing a worn sprocket or for modifying the gearing to fine-tune acceleration or top speed according to your usage. Compatible with small displacement and lightweight machines; common application examples include: Husqvarna TC 50 MINI (2024), Derbi Senda X-Treme 50 SM (2022), Kawasaki KLX 110 (2020). Simple installation, to be paired with a compatible sprocket and chain for the 420 pitch.