Q Rings

[Onyer]

Has anyone tried these? Are they any good or just a gimmick?

http://www.rotoruk.co.uk/qrings.html#diff

 

[numbnuts]

I maybe wrong, but they are not new, I think we had them in the 80s I think they were called Biopace chainrings

 

[Mr Haematocrit]

Thread already exists regarding this question.

http://www.cyclechat.net/threads/qrings.146751/