It's a new year so we start a new thread. Who is doing something to their KLR today?
The two knobs are indeed a roll-stop mechanism. See below.@schlim, they have either changed the design a bit or changed vendors. I see that there is some sort of roll-stop thing going on, perhaps, with those two knobs. The locking bar stops are a bit different, too.
It still looks like they have the cast-iron wheels. If you plan on using it primarily in the garage, you might want to consider new wheels. It takes some drilling out of the rivets on the casters, but it isn't too hard, nor is it really expensive. The results are quite pleasing.
I can take pictures and provide more detail if you like.