Hello,

Very boring I know but can anyone help me find a circumference for my wheels so I can put it in my Topeak Panoram (yes sorry boring I know, I'll add a thread about how I Won the Giro next time I promise!)

I've got a 2009 Kona Smoke with Continental City Contacts. Kona say they're 700x47 and the tire says they're 28 x 1.75 ( i realise one is metric and one imperial).

I really want to avoid the roll out method if poss as I'm a bit OCD and know I'll get an ever so slightly different reading each time and will end up doing it about 300 times!