Right hand Cam: Specifications: Exhaust (X) 41.65mm, Intake (I) 41.58mm, Journal runnout max .03 : This cam: X1= 41.75, X3= 41.74, X5= 41.67, I1= 41.72, I3= 41.68, I5= 41.67, Rounnout journal 1:= .01, 2:= .01, 3:= .01, 4:= .005 This adds up to a cam at 47k WELL maintained miles, well within all service limits (in actuallity it is hardly worn). Nice piece, would go into my bike any day on any build, probably better than the cams in mine.