Originally Posted by himespau

Your personal geometry can change (ie you grow or shrink) and your fit can change as your level of fitness does. But if frame geometry is tube length and angles of welds, the only way that can change is if you're a frame builder and cut the sucker apart change the miter and/or swap in new tubes and re-weld. Other than that, headtube angle and height, seattube angle and length, and top tube length aren't going to be doing much changing.