Niner is now making SS cogs. The Cogalicious will be availible in two weeks and will come in sizes 19t, 20t, 21t, and 22t sizes. It's made from 7075 T-6 with a thicker spline section to decrease the chances of biting into the cassette body, cnc machined teeth with a higher profile for SS use (better chain bite) and black anodized with Niner laser etched logo on both sides (the step up for the thick spline section is only on one side, so you can flip the cog for added chain alignment if necessary). The cogs will retail for $30.
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