My friend has a 99'CR250 that I took for a ride today. It has a complete pro circuit ported engine and exhaust with high compression. I must tell you I've ridden some fast bikes(99 CR500, 01 YZ426, 03 CRF450) This thing is just an animal. I mean brutal right off idle. He dosent even like to trail ride it. I have a 93' CR250 (motors all stock except PC exhaust) that I love, and was thinking about sending to Eric Gorr for porting. The thing is I dont want an unridable bike like this, just a smoother hit and more over all power, mainly mid and up. I would'nt mind a little more bottom end. I strictly trail-ride. Does anybody have any suggestions?