sorry for the slight thread hi-jack,but i thought this would be the absolute perfect place to ask,i need to know the seatpost diameter on an Aluminium 'O', been told 27.2 once,which was wrong,my USE shim says 27.8 when i pull it out,is that correct?havent found many seatposts that have that size?
sorry again for the jack,will be posting pics of my 'O' soon,shes coming along a treat!