We found this item over in the May 3 Tech News section:
In addition to (Chris King's) coveted headsets and hubs, a comprehensive line of single-speed cogs, cog lock rings, and headset spacers is keeping the CNC machines busy at Chris King.
Shimano spline-compatible single-speed cogs are available in either clear-anodized aluminum (16-19T) or bead-blasted and heat-treated stainless steel (12-20T), and both incorporate a 5mm wide base to prevent digging into soft aluminum cassette bodies.
Cog lock rings are offered in aluminum or titanium in either 11T or 12T varieties, and both feature slightly longer threads for better engagement on today's longer 10-speed cassette stacks.
Read the entire May 3 Tech News section here.
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