i just bought some vittoria action team HSD fold tires and as the name suggests they came folded. i unfolded them and they're really flimsy (what i mean by flimsy is that they don't retain the circular shape that it should normally be in. my question is: can i still use these tires? i guess im currently running non-fold tires. can i still use fold tires? will they fit the same way as non fold tires?