pabafree95

I have a set of new tires and wondering how long does it take to break in the tires so as to achieve good road adhesion? I presume that a set of tires with a few hundred miles achieves better grip than when brand new?

No HTwo O

Yes, about 200-500 miles to burn off/scrub off the slippery mold release. Just put new front tires on the Turbo yesterday. Hope to get 500 miles on the tires before going to Road America for Memorial Day weekend.

403portside

I've only put about 200 miles on a set I put on 2 weeks ago. Starting to feel better but in my experience it takes about 500 miles to get all of the mold compound off. I bought Michelin pilot super sports and cannot wait for them to get to full grip!

pabafree95

Nice fellas - thanks for input. I feel when pushing it a bit, the rear is catching up in the direction I am steering. It's awd, but maybe I need apply more throttle to keep it down......enjoy the weather, safe driving.

cab&coupe

As others have stated... exercise caution untill you've gone 400 or so miles. Then...

RonCT

FYI, there's no mold compound, rather just some sort of spray they use (think ArmorAll on your tires). Depends on the maker, but I've found anywhere between 50 and 100 miles is all it takes to get tires like PS2 up to full performance. All you are doing is scrubbing off the slippery stuff.

http://www.tirerack.com/tires/tirete...e.jsp?techid=5

SpeedBump

My Pilot Super Sports were sticky right away and after 200 miles are really sticky.

buckwheat987

Same here.

No HTwo O

RonCT, why do your say this? Even the Tire Rack link you provided supports the comments about mold release:


"Tires are comprised of many layers of rubber, steel and fabric. Due to these different components, your new tires require a break-in period to ensure that they deliver their normal ride quality and maximum performance. As tires are cured, a release lubricant is applied to prevent them from sticking in their mold."

RonCT

There's no "Mold Release Compound" as referenced in 403's reply. In the old days the tires were made with different layers of "rubber", where the outer one was what you wore off to get the performance. Now they just use a lubricant. So I was reacting to "compound", not that there was mold release.

hpowders

My SA (Suncoast Porsche) told me to be careful the first 50 miles.

sjfehr

I've autocrossed new Star Specs with barely 20 miles on them, and they gave more grip than the worn/heat-cycled ones I'd just taken off. Was actually quite a drastic change in handling, as I only changed the rear tires that time- went from oversteer on worn tires to understeer on new.

I'd expect it to be different for different make/models of tires, though.