2015 Surly Single Speed Conversion Kit

Everything you need for a single speed conversion. I tried single speeding with a rigid fork and am now hooked. It is a lot of fun, mostly because it's so simple. Nothing to think about, just grab your bike and ride. The kit comes with: Singleator chain tensioner (with an extra spring), Surly 18t cog (much nicer than the cheap stamped metal ones) and the spacers which you can combine in different combinations to line up your chain.