Using either Echo or Zhi rim. Can't remember which lol. Think it's an Echo. And rear pads are Heatsink clear's ( they are clear not sure what they are as obviously they don't produce them anymore) Anyway might try the hacksaw deal. Tried the wire brush and it worked for a while, but the way I ride only like 3 days. Also, does Dremel make an attachment or is their a small handheld grinder that I could get that would work a lot easier? In the future anyway.