Hard Stuttering sound while reversing

Datsun240Z71

My OEM RE050s do it too. Weather here does not really warrant winter tires (I'll drive something else if it gets that bad), but I will get all season tires when these are replaced.

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Randy in Nashville
Middle Tennnessee Z Club
1971 240Z

Spati

I am a little confused on why the tires do this sound , they are just rubber right? the sound i am mentioning is like if you hit a iron rod against another iron rod......

mults

The tires have a very soft compound, and when they are cold, there are also very hard. When the car moves and the wheels are turned, the tires are actually "skidding" on the pavement. Once the tires warm up, the sound goes away and everything is fine. However, be very careful when driving the car when the temp is close to freezing (32°) because they have a tendency to have less traction (tires are still somewhat hard) when going around a corner. This is the reason to install winter tires.

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40th Anniversary 'Z', 312.06HP/260.58TQ (Dynosty EcuTek Tune)
Build Date/Number: 1/27/2010 #706
Berk HFC + CBE, R2C CAI, Clear Bra, Cleveland Z Club[/COLOR]