I think what everyone wants to know is how many engines have you had in it or how many times it was pulled from the frame??I've had several different engine configurations on it mostly 1397s. I got to Daytona and ride to Myrtle Beach Bike Week every year since 2001, never had one to let me down. I did have to put a 2nd gear in the original motor after 5 months back in 2000, now I undercut the tranny on any one I build. I've actually got someone wanting to buy this one after Daytona, so I'll have an '07 engine on it then - the one on now is an '05.