I recently purchased a specialized P.1. The bike came stock with specialized fuse 3pc. cranks and chainwheel. I believe these are also sold under the redline, poverty and mosh brand. The chainwheel, out of the box, had a lot of "wobble" as it spins. this isn't causing my chain to fall off, but there is a noticeable change in chain tension. Nothing appears to be loose. Is this common with 3pc. set up? Can I do anything w/o buying new cranks/chainwheel to fix this?