981WC

Tire experts, what does this mean? I understand that I shouldn't be using past the tip of the arrow, right? Is this much over fine or should tire pressures be adjusted?

Currently running 30F 33R cold.

Below picture is of one of the rears. Seems to be rolling 1/4" over the tip of the arrow. The fronts are rolling about 1/8" over the tip of the arrow.

These are 19" Michelin Pilot Super Sports on a 2014 Boxster with PASM and PTV. Street driving. It's never been on a track. 2K miles on the tires.

Thanks in advance for any feedback or insight!

adrial

Pressure should be 32F 34R cold

http://www.porsche.com/all/media/pdf...xster_PCNA.pdf

Should not be rolling over the arrow, but not a big deal if it does. If at the end of the life of the tires, they are more worn on the outside due to your aggressive street driving -- then you may want to opt for a slightly more aggressive alignment.

Van

The arrow is an indicator for where the wear-bar is located on the tread.

TXE36

Exactly. Heck, that tire looks brand new to me.

-Mike

adrial

Picture didn't show up initially for me, after seeing how high up on the tread the arrow is -- I agree with those above.

Hella-Buggin'

I didn't know about these arrows. I think I must have worn mine off awhile ago ;-)

CCA

The arrows are locators for the tread-wear bars. They are not there to indicate inflation or camber/alignment issues. For those issues the service manual or pyrometer & pressure gauge are your friend.

981WC

Are you sure? A Michelin rep told me they served BOTH the purpose of indicating the wear bars and how much rollover you should be doing on the tire.

981WC

That's for a 987. I have a 981. Different factory pressures. I don't follow factory pressures to begin with though. For the 981, I think it's 32F and 29R. I like to break the rear tires loose though under throttle so gave the rears more than the front.

981WC

Thumbs up!!!!

993GT

This is correct, wear pattern should stop at the tip of the arrow.
Additional air pressure might help or re-align with added negative camber.

Veloce Raptor

Dude. This explains why your tires look the way they do.

zedcat

The arrows are to indicate the wear bar location. Coincidentally they can be used for rule-of-thumb indication of how far the tire is rolling over. The arrows on my MPSS are long gone. A few track days will do that.

ShakeNBake

For street driving maybe....

Your aim at the track should be the michelin man's head

981WC

No way! That's half the sidewall!!!!! You seriously take off the Michelin Man's head on your tires?