I have a 91 K75 w/ 125k mi that I bought last year from the widow of the owner. The bike was well maintained, but there is no record of the rear shock being replaced. I am going to take a week long camping trip in the near future with my lady, and I am beginning to wonder if the rear shock needs to be replaced. It looks like its in good shape from the outside, and I dont know enough about suspension components to determine if the shock is worn or not. As far as I know this could be the original shock or it could've been replaced the week before the guy died. How can I tell?