Anybody used one of these..?? ( see links below
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)
Seem great value for 10 speed 40 or 42 cassette, I've no idea about build quality or shifting performance but the top one is cheaper than a solo expander cog..!!
The weights seem reasonable for the cost, could be a great 10-42 single ring setup for someone who would like to try 1x setup cheaply.
Chain, cassettes, front ring all for less than £100...
http://www.tritoncycles.co.uk/component ... wwodTScCcAhttp://www.tritoncycles.co.uk/component ... 0wodd7UJxg