JT Sprockets JTF1590.12 is a front (countershaft) sprocket engineered for reliable power transfer and long wear life. Computer-designed for maximum strength at minimal weight, it’s a high-value upgrade or replacement for your Yamaha final drive.
JT Sprockets Front Sprocket (JTF1590.12) is built to keep your drivetrain efficient, dependable, and consistent ride after ride. Designed with computer-aided engineering, it targets the ideal balance of high strength and low weight—helping your bike deliver smooth power transfer while resisting the wear that comes from dirt, grit, and hard use.
If your current front sprocket is hooked, noisy, or causing uneven chain wear, replacing it is one of the fastest ways to restore clean acceleration and protect your chain and rear sprocket. This JT sprocket is made from top-quality materials and produced to meet or exceed high quality standards, making it a smart choice for riders who want durability without overspending.
