I mainly ride wooded areas and trails, some open fields, and do a little jumping. I need to know which big bore would be the best for my 250R? Such as 265, 295, 310, or 330? and by which company should i get it from? The main thing is that i want to retain all of the Honda Reliability.

 

well i'm plannin on buyin a 250r soon and i'm planning on getting the 295 with powervalve.

 

FYI: the 295 and 310 are the same bore. the '310' kit is actually about 293 cc's on its stock bore, and 307 on its last (hence the 310 name)

 

Call Curtis Sparks. or go to his page http://www.sparksracing.com

 

I suggest LRD or Duncan Racing.

 

Go for broke and get the 330 with Cross
Country porting. I have a CT 330 and I love it. You will have tons of power, are you ready for that? Call CT and see what they recommend.