09-19-2010, 05:28 AM
yes the crank, it's the techstar massive full size pulley and the website says ". Zetec motors are INTERNALLY ZERO balanced, meaning the factory pulley IS NOT a harmonic dampener of any kind."
http://massivespeedsystem.com/_massive_s...52236.aspx
http://massivespeedsystem.com/_massive_s...52236.aspx