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Re: tyre height relation to gearing |
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2001/5/3 7:04
From 48 North
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You got it right. Taller tires mean taller gearing ("highway gears"). Smaller tires give a steeper "take off" gear.
There are not many tires smaller than the stock 12s. If you do go smaller (like the 165/70-12s) it won't be much difference, but an overdrive 5-speed will drop your cruising revs back again. But unfortunately the 5-speed will also reduce 1st-gear torque (as first gear is taller). This is a good thing if you fit an A14 or A15, but the A12 needs all it can get.
I have a friend with a Toyota pickup with very tall tires. It takes off so slowly, but he bought it that way and doesn't realize how bad it is. If I had that truck, I'd be swapping gears or smaller tires to get the performance back.
Posted on: 2003/5/6 17:10
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