Hi all I am mart and i am new to cycling and I am very overweight I have brought a second hand road bike a barracuda azzurri that I have converted to a flat bar as its more comfortable for me ok so the thing is I am worried about actually riding it now as the wheels are thin and worried they my not hold my waight (700x23) is the biggest tyre I could fit in the frame and also I haven't cycled on the road since childhood and I used to love cycling all my previous bikes have been mountain bikes I live in the south west so there is loads of country side that I feel I am missing out on any advice would be really appreciated thanks in advance every one