I've Just bought a 97 500 sportsman cylinder to upgrade my 425. Could be used as standard size but I'm planning on doing it right and only once so: Does anyone know what the max oversize limit on the cylinder is? Wiseco and other piston manufacturers go up to 93.5mm that's .060 oversize. Stock is 92mm. At .060 over that would make it a 525. Hmmm, 100cc more than I have now. Sounds like fun. You recon I could order up some Magnum 525 stickers from Polaris, LOL.