bore my 125?

[HubertGarfunkleIII]

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?

 

[griffbones]

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

 

[HubertGarfunkleIII]

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?

 

[robwbright]

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.

 

[HubertGarfunkleIII]

hate to sound dumb. :coocoo: ..but whos eric gorr and how do I contact him? :think:

 

[whenfoxforks-ruled]

http://www.eric-gorr.com/ He did a 134 on a 01 and that baby rips!That was as large as it could go without case mods.

 

[rpm12505]

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.