<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1518966645922_10545">I have a BJ8 and had a noticable shake a 60 to 65 MPH when I replaced and had all 4 wheels balanced with the traditional balance machine. </div><div id="yui_3_16_0_ym19_1_1518966645922_10543" dir="ltr">I do track days with my M3 and have the wheels & tires balances on a road force balance machine and never have any out of balance </div><div id="yui_3_16_0_ym19_1_1518966645922_10927" dir="ltr">vibrations at speeds well in excess of 100MPH. I then had the Healey wheels balanced on the same machine, and going over 90 MPH </div><div id="yui_3_16_0_ym19_1_1518966645922_10986" dir="ltr">the car felt smooth as silk. I highly recommend that those of you that have "shuttle shake" and are not near Alan Hendrix contact your </div><div id="yui_3_16_0_ym19_1_1518966645922_10991" dir="ltr">local speed shop or Porsche repair shop and ask if they have a road force balancer. It will make your driving experience more pleasurable.</div><div id="yui_3_16_0_ym19_1_1518966645922_10885" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1518966645922_10883" dir="ltr">Mark Goodman</div></div></body></html>