Hi i got a fit trail 1 bmx bike like 4 days ago and i absolutely love it, BUT unfortunately my crank set (or something else) starts to squeak, it is not very loud but i can hear it. It squeaks usually every time i pedal around once for like 1 or 2 seconds. my friends telling me that ill most likely need a new crank set, but its a freaking new bike and crank sets are like $110 so WTF. HOW DO I SOLVE THIS PROBLEM PLEASE HELP ME !!!