When to change a tire?

[jonmike]

Hey guys,

I need some help. I'm not sure when to change my tire? It's a Michelin so the thread indicators are Michelin himself. I'm not sure whether Michelin should be worn out completely before I change them or a part of him?



KM travelled by other tires: 27+++kms.

Thanks in advance!

Note: Btw, this is a pic of the spare tire (changed about a month ago) so medyo ok pa siya.

[torque2006]

eyng? thread indicators come out in the middle of the tire. pag lumabas na yung mga "S" grooves sa gitna ng thread. ayun ang turo saken.

baket sa sidewall? ganyan ba talaga ang michelin?

[B2Bomber]

shouldn't there be a bar across tread that indicates whether you need to replace your tires already?

coz' IMHO and CMIIW, if the michellin man IS the indicator, then if the tires get scrubbed badly on curbs and the michellin man gets "erased" then that'd mean you'd have to change tires already?

additional info from the Michellin Man himself...

[jonmike]

Kasi I noticed sa Bridgestone and sa Goodyear para triangle yung thread indicator niya e. Don't know whether the triangle part should be worn out though or should only touch the top part of the triangle.

[sirmykel]

goodyear at bridgestone meron small bars in between the threads. kapag umabot na un, yun ata yung pinaka accurate sign na magpalit na ng gulong

[restituto]

What is shown in the picture is not the tread wear indicator but rather its the guide where to find the tread wear indicator (small bars in between the tread). If the small bars across the tread is already exposed or in level with the worn-out treads, then its the time to change your tire.

[restituto]

Tread depth and tread wear indicators



For the most part, motoring law in most countries determines that your tyres need a minimum tread depth to be legal. This varies from country to country but is normally around 1.6mm. To assist you in figuring out when you're getting close to that value, most tyres have tread wear indicators built into them. If you look around the tread carefully, at some point you'll see a bar of rubber which goes across the tread and isn't part of the regular pattern (see the picture here for an example). This is the wear indicator. It's really basic, but it's also pretty foolproof. The tread wear indicator is moulded into the rubber at a depth of about 2mm normally. As the rubber in your tyres wears away due to everyday use, the tread wears down. At some point, the tyre tread will become flush with the wear indicator (which is normally recessed into the tread). At this point you have about 2mm of tread left - in other words it is time to change tyres.

Hope this helps....drive safely...

[B2Bomber]

checking tread wear according to :

GoodYear

and

Bridgestone

both of which refer to a bar across the thread just like Michellin's... and I suppose as well as other brands.

hth