Well... it was kinda yesterday, but I had recently put on new tires and upon reassembly the rear speed sensor allen head bolt had stripped a bit as I was torquing it down. So yesterday I was going to go pull the stripped allen head bolt and replace it with a new bolt. Knowing that it was already stripped a bit, I carefully put the allen socket in there and tapped it into place hoping to get a grip on it. No dice... the allen socket just spun in the bolt head rounding off all the corners. So I next went with a slightly larger torx socket and tapped it tightly into the stripped allen head and started to turn - it stripped just like the allen head socket had done. Damn!! Now I was left with fewer options. I went to the old standby of scoring a groove in the head of the allen bolt with a hacksaw and attempting to turn it out with a flat blade screwdriver. Once the groove was very carefully cut, I decided to use my little dewalt battery operated impact wrench with a flat blade tip to see if I could use the impact at the start to spin it free. No luck - I just bent over the tips of the flat blade screwdriver attachment. I then got a long handled screwdriver and tried it by hand - nothing and I broke the tip of the screwdriver off! This little bugger is in there tight! The weird thing is that the allen head bolt stripped BEFORE the torque wrench clicked so it is really not in there that tight. At least it is in there and the bike is rideable, but at some point that bolt has to come out if I want to change tires again. The allen head bolt is really buggered up now with the various removal attempts. So I am going to go buy a screw extractor kit and see if I can drill the bolt out enough to get the screw extractor to grab it. Ultimately I may sacrifice the speed sensor and/or attachment hub - either on purpose or incidental to my removal efforts - and be forced to order new ones for around $150. Hopefully not, but a potential Ouch!
