Hi! I just purchased a used Echelon Connect Sport. It looks brand new, but the left pedal wobbles. The woman I bought it from said she was never able to tighten it. When I got it home I found that the crank arm is stripped where the pedal screws in. I called Echelon to order a replacement, but was told that they don't sell them and I need to buy a new bike! Does anyone know of a source for this part? Thanks!