Wheels Manufacturing WMF Single Speed Spacer Kit - SSK-1
Wheels Manufacturing WMF Single Speed Spacer Kit - SSK-1, Wheels Singlespeed Conversion Kit. Features: Aluminum spacers to convert a Shimano splined cassette hub to a Singlespeed Also available with spacers and cog or with spacers, cog and chain-sandwiching guide plates for added chain security Specs: Includes:(7) 4.5mm and (2) 1mm spacers: no cog