Rear Size: 39. Note: Sprocket hub bushing not included.

• Computer-designed to achieve ultimate strength at minimum weight
• Every sprocket meets or exceeds the highest possible quality standards for the motorcycle industry
• Sprockets are heat-treated and bead blasted to reduce material surface tension
• JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value
• Made with top-quality-grade C45 high-carbon steel