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Mixing front and rear tyres(6 posts)

Mixing front and rear tyrestifosiboy
Jul 23, 2003 8:01 AM
What's the general opinion on having completely different brand/type tyres on front and rear - any performance/safety issues? I always replace tyres one at a time as needed, so I would like to fit best available at the time - which is not necessarily the same as the other tyre.
re: Mixing front and rear tyrescaniaitalia
Jul 23, 2003 8:26 AM
u shouldn't have a problem with safety, but style-wise you might take some flack. i'd keep them generally the same (all black, same colored sidewalls, no black/yellow on just one, etc. ) that's just my opinion!
re: Mixing front and rear tyrestobinb
Jul 23, 2003 8:45 AM
Always put the newest or coolest tire up front as thats the one you have to look at. Always put the older one on the back as theres less carnage if it blows. just make sure you mount them with the label at the valve stem, on the drive side. only then will you be ok.
New tire, front or rear?MShaw
Jul 23, 2003 9:09 AM
Considering that there's about 70% of your weight on the rear tire, I've always wondered why it is that you want the tire that flats the most to have the lease amount of tread when you're replacing tires.

I've done the switch with tires that are flat across the tread and they make handling funny, but if the tire's not flat across the top?

I know Sheldon's written about this, and I don't agree. Gasp! Someone disagreeing with Sheldon! Gasp! But think about it for yourself before you flame me.

well, usually the rear wears first.jw25
Jul 23, 2003 11:35 AM
and you have a worn-out rear, and a front that's old, but still pretty good, treadwise. So you swap the old front to the rear, and put a new tire up front.
Personally, I don't notice much difference in handling between worn and new tires, but on something like a Conti GP3K, where the rear squares off almost immediately, I think you might. The front tire leans more in corners, and the transition area might feel strange. It'd be almost the opposite of a motorcycle tire, that's got a triangular shape. The center ridge makes less contact in straights, but lean it over, and you have a wide contact patch for traction.
As to the different tire question, there shouldn't be any problems. Try to keep the dimensions similar (no 20c front with a 32 rear, for example), but tread patterns, tread compounds, casing construction - shouldn't make a difference. Ride what you got, pardner.
Flat frequencyKerry Irons
Jul 23, 2003 6:01 PM
In my experience, there is no change in flat frequency as a tire wears out. Given the thickness of the casing, the thickness of the tread is pretty minor. Flats on the rear are a lot less of a problem than flats on the front. And you're WAY off on your front/rear weight distribution - it's more like 45 front/55 rear. The rear tire wears out due to power transmission (front ones don't wear much, they age).