Are you sure your bike has 18" wheels? I thought the MC18 had 17". I found 18" tires on ebay. I think the only good sport tire you can get in that size is the Bridgestone BT014, but I'm not sure if they even have a matching front tire.
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james
Its not how fast you go...Its how you go fast.
MC21 Rothmans
RS250
RC31
CRF250X
748R
Porsche (many)
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