| tech operator. And if tire removed or altered due to flat repair the balance is no longer good. Balance tire off car with a good balance machine that tells which side of rim the weights go on that correctly deals with the dynamic harmonics. Also ask shop if they will check rim and tire lateral and circumferential runout and see if in spec. Also ask of shop will do tire rim matching with color dot on sidewall to rim low point and not just place the sidewall dot at the valve stem which is usually not correct but most installers think it is. High performance tire makers will place colored dot on sidewall to allow installer (who knows, Ha!) to correctly locate tire on rim for proper matching. Each rim has a circumferential radial low spot that needs to match the colored dot on the tire to minimize the vibration harmonics of tire rim combo for smoothest ride. Performance rims come with the low spot marked with a dot. If not there or missing thru time the low spot can be found with a dial indicator at both inner tire bead areas, then the midpoint is the average low spot and marked on the outside of the rim. Some manufactures use a colored triangle on tire sidewall. Some Yoko tires have a colored dot and colored triangle so you need to find out from them which is for what position to match the harmonic (preferred).
ZUL8TR in Orlando,FL |
