If you're gunna trim that rubber stuff, a heat gun and an extremely sharp hobby knife goes a long way when it comes to getting this stuff to fit. It may be tough ordering them online, in my experience not all rubber compounds are the same. If you tried to put a Trek or Norco moulded downtube armor on one of these bikes for example, you'd be shit out of luck because they're very specific. So if you see a friend with a nukeproof and you can feel if the compound is soft or not, maybe give it a try. I'd be leery of the heavily shaped chainstay protector too though.