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bore my 125?

Joined
Mar 16, 2007
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#1
Im thinking of boring my 125 but Im not sure how much bigger I should go. I remember reading in a thread that you could probably bore it out to 150cc? is that the biggest you can go. or the biggest/safest you can go. what would you guys recomend I do if I would like to bore my bike?
 
Joined
Sep 12, 2006
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#2
Have Eric do a 144cc for you, that way you can use an off the shelf Wiseco piston when it is time to freshen it up, not high dollar custom stuff. just my .02
 
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Mar 16, 2007
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#3
makes sense. is going 144cc too much though? I would like to go as big as possible but still be as safe as possible. I heard if you go to big it can cause problems like warping the head or something along those lines?
 
Joined
Apr 8, 2005
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#4
Call Eric Gorr and talk about it. Some of the CR's will only allow 134 overbores from what I recall. . .

As far as 144s go, no motor troubles with mine in about 1/2 season of riding.
 

rpm12505

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Sep 25, 2005
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#7
HubertGarfunkleIII said:
hate to sound dumb. :coocoo: ..but whos eric gorr and how do I contact him? :think:
Eric Gorr is the man. He' the best at this, as well as the best value, a very rare combination these days. He modified my sons RM early this year and he's back in the top 5 again. (mx/sx amateur class) In contrast a friend of ours spent 3 times as much on the same bike with lesser results. ( in bike performance, that is )
P.S. he's also been doing this since before you were born.