Thread: Mixing tires?
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Old 07-10-2011, 02:42 PM   #6
derf
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Join Date: Nov 2008
Moto: CBR 900, KLR ugly ass duckling, Gas Man
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I'll tell you from experience that using vastly different tires on the front and back can have devastating consequences on handling. A few years ago, possibly 02 or 03 I had a pair of DOT race tires on my ninja, the front tire was fine and I was broke so I replaced the rear with the cheapest decent tire I found in the right size with the expectation that in a few months I would be able to afford the $300 Dot race rear. The tire I put on wasnt a no name brand tire, if I remember correctly it was a dunlop sport touring tire.

The handling was super sketchy, it felt like the back end would way over rotate in every corner, almost like it was washing out on me. the bike would twitch, become unstable jerk around and became very unpredicatble. I was told by others that it would wag back and forth a 6 inches in either direction mid turn. I thought it was just the new tire curse and took it easy for a while, but it never went away. Basically the bike was next to unrideable.

I wound up asking online and the general consensus was to dump one of the tires and put on a matching tire. So I dumped the front for a matching tire and was fine.

Now this is a very extreme example, super grippy up front and long lasting and harder in the rear, two tires with vastly different profiles. To say it was just plain dangerous is an understatement. It was a big lesson learned and since then I have always put on matching tires. But i have heard of people who put on similar performance and profile tires and been fine, but my experience was bad, and it was a stupid thing to try on my part.
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