Hi, I jujst bought a Panama Jack bike at Walmart for $190.00. Love the way ot looks and love cruiser bikes, however, when I pedal it makes a noise like something is hitting something, checked all over, fenders not touching, kickstand, tightend all nuts bolts, chainguard, you name it, but it still makes the noise, bujt only when I pedal (tighten the pedals also), anyone have any ideas? Thanks. jake9364@sbcglobal.net