I plan on getting a powroll big bore kit for my Honda 250EX which will increase eingine displacement by 20cc, but before I get it I need to know if it is very reliable, Has anyone had any expieriance with this kit and can tell me if there were any problems or not? [img]i/expressions/face-icon-small-sad.gif[/img]

 

I haven't seen there 250ex kit but, we have 2 other kits of theres. The 440 stroker, I ride that like I stole it and a 305 in the 300, that quad only gets raced(3 seasons on it), and have no problems or complaints with Powroll or there engine kits