Not that what I have to say is gonna spice things up, just thought I'd share this. My son and I are getting ready to head out for a ride. His bike always seems due for service, pisses me off, anyways so I'm changing his oil cleaning his filter checking for loose bolts yada yada yada!! I go to lube our chains and I notice that his chain would get tighter at a particular point. I had just put on a new aluminum sprocket on the rear and my first instinct was to think, "sprocket must be out of round". I spun it again looking over the whole final drive looking for something goofy. Nothing!! So we head out thinking I'll buy a new sprocket when get back. We were riding in some local foothills, nothing special just some high speed stuff. He says I look like Caselli when I'm over the handlebars and my rear end is swapping around. I tell him " Whatever!!" but on the inside I'm a little giddy. I know he's full of shit. To be honest I truly love to watch my kid ride. He's got a style that I love. Probably because he's my kid but whatever. So I'm behind him, and on a decent about 60 mph. Something comes shooting from his back wheel. Suddenly I'm caught up with him. He stops, throws his hands in the air as if "wtf" and gives me the stink eye. I get off and take a look. That's when it hits me, "transmission shaft was bent". Damn. Why didn't I think of that at the house. His chain snapped in two. That's what flew off his bike. His tranny was locked up and he couldn't be more disappointed in his old man. How many of you figured out shit just a tad too late???