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Question:

Tire Rating vs. Tire Depth - Are we being misled by tire ratings?

When shopping for tires, I take note of the rating (eg. 100,000 km, 120,000 km etc.) which presumably tells me how far the tires can take me before they need to be replaced. (In the USA, I would see 50,000 mi. etc.)Of course actual wear would vary depending upon weather, road conditions, tire rotations etc.but let‘s pretend I drive in a perfect world which gives me maximum mileage for my tire dollar.Mechanics recommended that I replace my tires when the tread depth is 5mm or less, and at 2mm it is too dangerous or even illegal to drive on them.I was just at a tire store and a brand new tire‘s tread depth seems to average between 9mm and 10mm.When tire manufacturers rate their tires for a given mileage (eg. 100,000 km) do they mean that in a perfect world, if the tread began at 10mm, when my tires are at 2mm tread depth I should have been able to drive 100,000 km.?But if I replace my tires at 5mm, then I really can get only 62,500 km out of them. Do I have all this right?

Answer:

step one: GET A SHOP MANUAL! It has pictures and diagrams and easy to follow step by step instructions.
you will almost definitely have to remove the rear wheel (not tyre, but entire wheel) if it has a double sided swingarm, I believe this model does. This isn't too hard if you just bump it on the centre stand then its only a few bolts and it comes out. No jacking up malarkey required :) Drums are quite simple, shouldn't be a problem
I think its a bit of both options to be honest. Raw's have sucked and been really good on different weeks. You get certain people thinking of one match then generalizing the whole show on that one match e.g. GAB Cena vs Lashley sucked but the Cruiserweight Open was entertaining. However you get people saying 'Wow that sucked' I think my feelings have changed but i think there is a chance that WWE can get back to the Attitude Era which they need to do. At the start of the year WWE really sucked but it has improved you will just find people who still aren't that convinced that WWE is getting better.
I thought 5mm a little over 6/32. Not 4/32 as a person in the tire industry stated.
First of all the tire ratings are all due to varying factors such as- performance tires are softer and wear out quicker not to meantion the way they are used. Touring tires are rated higher mileage because of the rubber compound is harder, therefor last longer, and even those vary. The difference of the 9mm 10mm really has nothing to do with the mileage rating. This can simply be due to the difference in the manufacturure. replacing them at 5mm seems to soon, you can go down a little more before replacing them. Tires will definitely last longer when regularly aired up and rotated about every other oil change. I always get at least the rated mileage or more.

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