I use the itech x100.. the replacement visors are awsome, compared to shelling out for a whole new visor. It's big and curved so it's harder for a stick to go up under it. That being said, I got hit into the boards and the visor/helmet pressed in against my face and damn near sheared the end of my nose off... I see why now some of the players use the visor with the big curve in the center that seems to leave their nose unprotected...
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ZX14 VS HAYABUSA