so i have a conversion fixed, panasonic frame 63cm. so far so good, replaced everything on it but the rims. as a result of that, today my back hub came apart while riding (super fun). my chain fell off and my wheel started wobbling around. luckily i didnt fall, but i had to walk my bike home about a mile. anyway, after toying with the back hub and being unsuccessful in trying to repair it (i have never worked on a hub before), i took it to the bike shop and they said i was missing a cone for my wheel. the guy at the shop replaced the piece, but it was just a quick fix, apparently he didnt have the real piece i needed. he said it would hold up for a short time, but i do need to replace my back wheel (at least) in the very near future. the shop i was at didnt sell my size wheels (27"), they only had the newer 700c size. he said i would be able to use the 700c on my bike. i told him i would ponder it and come back. so I go home and put my roomates 700c wheel on my frame. fits, i would probably need a new brake but that would be it. heres the problem... since i am riding a road conversion, the crank is a bit closer to the ground, resulting in pedal scraping when i make wide turns. I have mostly taken care of this problem by getting 170mm crank arms (original were 175) and new pedals that are about an inch shorter. so far, no problems. so annnnyway, my question is, if i were to put the 700c wheels on my frame, would i have a large problem with pedal scraping since the wheels are a bit smaller? has anyone on here done this? any input is appreaciated.