Problem Solvers Zinger SingleSpeed Conversion Kit for XD

This Problem Solvers Conversion Kit allows you to adapt your rear wheel to the single-speed discipline.

• Fits most XD driver-compatible freehubs; not compatible with SRAM ROAM series hubs
• Fits XDR drivers when used with an appropriate cassette spacer
• Spacers included to customize chainline
• Includes 18t and 20t cogs