problem-solvers-zinger-singlespeed-conversion-kit-for-xd
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 hubsFits XDR drivers when used with an appropriate cassette spacerSpacers included to customize chainlineIncludes 18t and 20t cogs Problem Solvers Zinger Single Speed Spacer Kit UPC: 708752177574