About 2 years ago I woke up Monday morning and my back was hurting. I gave it a month and went to see the doc when it didn't get any better. Found out I had 2 bulging disc and some arthitis in another disk at the ripe old age of 22. I hadnt been riding for a few months prior so didn'nt think the bike could have caused anything. I basically wrote off riding for fear that it would aggrivate it more and just 'rested' for a while like the doc recommended. 'Rest' didn't help things at all. The same for cortisone shots, chiropractic or physical therapy. I recently took up mountain biking, jogging and just regular stretching and excercising... what a difference it has made!!! I can get a full nights sleep and not pop pain killers all day! So this past weekend I got the wild hair to get backn my beloved '06 12pinger. New airfilter, oil and a carb cleaning and she purred like a lion! When I first started it I heard a slight rattle that sounded like a loose skid plate. The noise went away after a few second and the bike ran great all day up until when we decided to head back to the truck. I go to start it and hear the same rattle except for it being much louder and nearly no compression. Figured the 5+ y/o crank must have finally went out and the piston was hitting the head. Went home and tore the bike down, everything looked fine other than a little excess side to side movement, the crack on the inside of the piston right behind the ring groove on the exh. side and the stuck ring. I have been wanting to build a big bore stroker 125 for ever and have finally been forced into it. Researched it a little and talked to Eric Gore... I shipped my engine out to him today for the 155 kit! I can't wait to get it back and see how much of a difference it makes!!!