- New for 2010 from Echo, only for use with Adamant, Czar, Echo, GU and ZOO rear hubs, both fixed and freewheeling.
- CNC machined from titanium, then titanium nitride coated for better wear resistance.
- Extra wide base means a tougher connection between the sprocket and hub.
- CNC machined holes (16T model) help keep the weight down.
- Compatible with all 1/8" and 3/32" chains.
- Not compatible with Shimano HG spline hubs (Hope, DT, Chris King etc) or Profile cassette hubs.
- Available in 12T ('solid' design), 15T and 16T (both with drilled holes).
- Weight: 12T - 13.3g. 15T - 21.3g. 16T - 24.5g.

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What Does 12T, 15T and 16T Mean?
Posted by Brad Whalley on 12/03/2011
Reply from TartyBikes on 14/03/2011
Hi Brad - The 'T' is short for teeth, meaning these sprockets are available in 12 tooth, 15 tooth or 16 tooth sizes. Thanks, Mark