JT SPROCKETS Rear Race Sprocket - 40-Tooth JTR897.40SC

If you're serious about reducing un-sprung weight and improving acceleration response, a lightweight rear sprocket is one of the highest-ROI upgrades you can make. The JT Sprockets 40-tooth rear sprocket delivers measurable performance gains through precision engineering and premium materials, without the guesswork of inferior alternatives. Whether you're chasing lap times or building a reliable street machine, this sprocket is designed to handle the demands of sustained high-RPM operation.

• Material: Austrian 7075 T-6 anodized aluminum
• Teeth count: 40-tooth
• Weight reduction: ~30% lighter than steel equivalent
• Design: Computer-optimized for strength-to-weight ratio
• Heat treatment: Full heat-treat and beadblast process
• Surface finish: Beadblasted to reduce material tension
• Quality standard: Meets or exceeds OEM specifications
• Fitment: Vehicle-specific (verify application compatibility)
• Installation: Bolt-on replacement
• MPN: JTR897.40SC