stripped bolt

I need to take a number of parts off of my 2023 R1250 GSA in order to install the Denali equipment I've purchased. I began taking the rear seat base off as well as the pannier rails. Inadvertently, on one of the bolts I inserted a T30 bit instead of a T40 bit. I had already loosened the other...

96 R1100RT While trying to remove one of the two allen head bolt holding on my rear brake rotor, after heating extensively with heat gun, propane torch and acetylene torch and still not being able to remove the bolt the allen head stripped . the other side came out with no heat at all? So now...