Tire tread depth gauge

[bmwpower]

Whatchu got/use?

[r6_cannibal]

i just run them a little past the wear indicator and then i drag them to the track as my dot-slicks :bounce:

[Paladin]

I just use the penny trick.

[Junkman]

I have one from the 1960's that measure in the 1/32", but it is too cold to go to the garage to get a picture. Remind me during the daytime.. Junk..

[Fedwrench]

I usually just use my eyes looking for wear, dryrotting, cracks, gouges, etc. I have a thread gauge at work that's color coded. >5/32 is green, 4/32-5/32 band is yellow, and <4/32 is red. I forget who makes it but, the colored bands reduces my squinting to see the exact reading.:lol:

[kartracer55]

The wear bars. They are a great easy universal way to evaluate a customers tires assuming there is normal wear patterns.

[terabyte]

the depth part of a caliper

[ImportTuner]

I usually just use my eyes looking for wear, dryrotting, cracks, gouges, etc. I have a thread gauge at work that's color coded. >5/32 is green, 4/32-5/32 band is yellow, and <4/32 is red. I forget who makes it but, the colored bands reduces my squinting to see the exact reading.:lol:

I have that same one and it is made by Accutire. I also have a digital one made by Fowler ..

[bennyy]

wow digital, mine is just a regular depth gauge.

[boiler7904]

Something like this one from Snap-On. (http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=12341&group_ID=1669&store=snapon-store&dir=catalog)

Wear bars are OK but only for even wear like Jim said above.

I thought I saw something where they were starting to discourage the penny trick because it doesn't leave enough usable tread on the tire.

[Danglerb]

Read the DOT date code on the side, more than 3 years and tires are no longer the same speed or traction rating.

[mkdive]

i just run them a little past the wear indicator and then i drag them to the track as my dot-slicks :bounce:

You talking for bike, or car? What brand/type tires you run on track?

[r6_cannibal]

You talking for bike, or car? What brand/type tires you run on track?

That would be the car. The bike doesn't go on the track without at least 50% tread if it's street tires. Car gets eagle f1's and the bike gets michelin pilot p2 ct's