I am, Im going to use a 650c fork with a 650cc rim in place of a 700c fork and 700cc rim.

Im just using my Apex brakes. If it doesnt fit i'll just get deeper brakes. But i need to find out how i would measure my offset? How would i know what is correct.

Im assuming 30mm. But thats just a guess. im prolbally going to get the 30mm anyways because it is a Oem factory in china with primer on top of carbon composite and im getting it shipped in from my uncle for free. He works for a cross sea boating company. But its not getting boated its fedex and no logistics check so it wont take 9 months.

But 30mm will do i think if not ill just spend another 30 to get a new one accomidating the offset before. I don't really care about toe bite. I just need my geo to be a little better.