All cams are ground by Yoshimura Japan using truely state-of-the-art equipment.
Yoshimura cams are machined from billet cam blanks, not welded up or reground stock units. Reliability and precision of the Yoshimura units are amazing plus you have no core charges!
Yoshimura Stage 1 camshafts give the rider improved midrange and top end, without sacraficing low end rideability. These cams do not require the use of heavy duty valve springs or any piston modifications.