160mm to 180mm rotor

woodgnome
woodgnome Posts: 28
edited August 2011 in MTB beginners
I have looked through the FAQ section on brake mounts, and i am still unclear, so.... i want to change my 160mm front rotor to a 180mm. Forks Suntour Epicon air , Brakes Avid Juicy 3's, Bike 2011 Boardman MTB comp.
What adaptor do i need please?
Ta.

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