You're a hardened singlespeed warrior; you need a hardened cog for your rig, so pick up Niner's Cogalicious RDO Ti cog and get back to mashing those pedals. The titanium construction far exceeds the hardness required for singlespeed riding, and the thick offset base ensures this tough cog plays nice with your Shimano free hub body. It's also flippable so you can fine tune your chain line for one-geared perfection. The spacer kit and lock ring are both included in a classy reusable Niner tin so you're ready to throw this bad boy on and crush any challengers!
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