They arent pinned in, theres five little pushtabs in the wheels and i cant get the wheels out of their bases and am affraid if i try to hard i'll break them, help? =(
Just pull on them carefully. Vehicon's wheels are held on the same way and I (accidentally) popped the wheel off by snagging it on something and pulled it off. so, I presume the same would work for Knockout.
I used a pointed object to push the tabs on one side of PRID Kup's wheels in to remove them, and gave them stress marks. I just popped Knockouts wheels off with my hand next and they came off fine. You should be careful not to break them but you should be able to pop them out easily enough by pulling.