bore size

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roystoy
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Joined: July 25th, 2010, 5:43 am

bore size

Post by roystoy »

am i correct in 89mm is stock and 91mm is max bore?
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Roostius_Maximus
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Post by Roostius_Maximus »

yes
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nmdesertrider
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Post by nmdesertrider »

Be careful when you get close to 91- my piston was fine but after a couple of years both sides of the cylinder were cracked.

There's a reason Honda only sold up to a 1mm overbore.
03 CRF450/85 500
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