hey i bought a new to me 92' kx500 a few weeks back. The guy i bought it from told me it had a big bore kit in it but had no idea what size or who made it. Whats out there for big bore kits? is there a way to tell what it is? Also it came with a fmf fatty pipe... didnt know that you could ever get those for a 500!? Ive riddin it about 2 hours on a new pirreli 90x19x110 on dirt and the tire is allready about used up :bang: :rotfl: . What tire out there is most resistant to wear and will stand up to this beast?