V-Twin Mfg .300 Inch Offset 530 Sprocket 21 Tooth for 1984-1990 Harley-Davidson Sportster

V-Twin Mfg .300 Inch Offset 530 Sprocket 21 Tooth for 1984-1990 Harley-Davidson Sportster

Running a 150mm rear tire on a stock Sportster frame requires offsetting the transmission sprocket to maintain chain alignment. This CNC machined, heat-treated 21-tooth sprocket delivers the .300 inch inside offset needed for that application on 4-speed Ironhead and early Evolution transmissions.

Key Features

• 21 tooth, .300 inch inside offset for 150mm tire applications
• CNC machined from premium steel and heat-treated for high strength
• For use with 530 pitch chain
• Typically used with stock frames with modified swing arms or hardtail kits

Technical Specifications

• Tooth count: 21 teeth
• Spline count: 19 splines
• Inside offset: 0.300 inches
• Total offset: 0.600 inches
• Chain pitch: 530

Fitment Notes

• Fits 1984-1990 Harley-Davidson Sportster 4-speed transmissions with 19-spline mainshaft
• Typically used for 150mm rear tire applications in stock frames with modified swing arms or hardtail kits
• Review the Fitment tab for complete year and model breakdown