Batch
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« on: Thursday, October 25, 2012, 10:29:06 » |
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In the picture below, you can see a car tyres. The bands travelling around the entire circumference have depth markers indicating legal limits.
These groves are above legal limit on my car. However on my tyre the horizontal-ish tread groves across the tyre on the raised bits of rubber are pretty much gone.
Is the tyre still legal. I am assuming so?
[url width=450 height=338]http://i1210.photobucket.com/albums/cc419/gotgrip777/16%20inch%20tires/DSCN6446.jpg[/url]
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Sippo
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I ain't gettin on no plane fool
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« Reply #1 on: Thursday, October 25, 2012, 10:32:00 » |
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Not legal no. If you are tyres are worn on the inside get the tracking sorted asap.
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If my calculations are correct, when this baby hits 88 miles per hour, you're gonna see some serious shit...
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Victor Mildew
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« Reply #2 on: Thursday, October 25, 2012, 10:33:43 » |
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Think once the raised bits are less than 1mm from tyre they are illegal
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Arriba
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« Reply #3 on: Thursday, October 25, 2012, 10:34:40 » |
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1.6m tread depth is the minimum across the whole tyre. anything less is illegal
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Batch
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« Reply #4 on: Thursday, October 25, 2012, 10:34:54 » |
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Not legal no. If you are tyres are worn on the inside get the tracking sorted asap.
They aren't worn uneven on either side. I can't quite work out why the circumference grooves would be deeper than the cross groves. How on earth would they ever not wear out quicker! |
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4D
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I can't bear it 🙄
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« Reply #5 on: Thursday, October 25, 2012, 10:35:36 » |
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Get a tyre depth gauge for a few quid. 1.6mm across 2/3rds of the tyre (I think) # good advice shocker number 2 Mcphlea  |
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« Last Edit: Thursday, October 25, 2012, 10:37:37 by 4D »
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Batch
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« Reply #6 on: Thursday, October 25, 2012, 10:37:08 » |
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Get a tyre depth gauge for a few quid. 1.6mm across 2/3rds of the tyre (I think)
My question is which bit of the tyre am I supposed to measure, just the 4 groves that are vertical in the picture, or also the groves that are horizontal too.. |
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4D
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I can't bear it 🙄
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« Reply #7 on: Thursday, October 25, 2012, 10:38:57 » |
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Put the point of the gauge in the lowest point of the tyre and the flat measure bit will be on the tyre surface = tread depth
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Samdy Gray
Dirty sneaky traitor weasel
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« Reply #8 on: Thursday, October 25, 2012, 10:39:07 » |
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1.6mm across the central 3/4.
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Batch
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« Reply #9 on: Thursday, October 25, 2012, 10:42:33 » |
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So in the below picture the red bits are fine ALL the way round, but the green bits are worn flush:
[url width=450 height=338]http://i141.photobucket.com/albums/r66/batch_2001/tyre.jpg[/url]
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Simon Pieman
Original Wanker
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« Reply #10 on: Thursday, October 25, 2012, 10:45:46 » |
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Minimum is 1.6mm around the circumference of the tyre i.e. the 4 'bands' around the tyre. It's just the middle 3/4 you need to worry about and the pattern you refer to does not need to be visible.
If they're worn to around 2mm then start planning to swap them on pay day, the remaining rubber will seemingly vaporise around this level.
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Batch
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« Reply #11 on: Thursday, October 25, 2012, 10:48:29 » |
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Thanks that's great, its just the patter that's worn though no doubt that is an indicator to start thinking about changing them. Will take a proper depth reading of the circumference grove later...
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Flashheart
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« Reply #12 on: Thursday, October 25, 2012, 10:50:04 » |
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It'd be the safety I'd be concerned with, not the legality.
I've aquaplaned myself once and completely lost control for a couple of seconds, it's very easily done with worn tires. Fortunately I was going quite slowly so nothing serious happened.
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jutty274
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« Reply #13 on: Thursday, October 25, 2012, 11:38:05 » |
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I would say the depth on that picture is about 4-5mm so quite legal.
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4D
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« Reply #14 on: Thursday, October 25, 2012, 11:44:21 » |
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Pity batch doesn't have that tyre on his car |
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