I started out on a ride this Friday late afternoon, did not get a 1/2 mile from the house when I noticed a clunk when I accelerated, just at the beginning. Then my Bike started making a noise like the bottom of it was falling apart. I limped home. I got up the next morning, checked all the fluids again etc.... Decided to ride it again and nothing. I rode for about an hour. Maybe it was just a fluke, not sure if anyone else has had a similar problem? Rode again for about an hour and nothing. Strange???