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Were did #7 go? Wheels n' tires. I have a question about changing the rear tire to wider size maybe to a 150 or 160. Will this require e new rim or any major modifications to the swingarm? Any input will be a preciated.
 

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Why do you want to run a wider rear tire? If just for looks then go for it. BUt keep in mind that a wider tire will change the handling of the bike. Not only is a 150 wider which will slow down steering I think a 150/60 has a smaller diameter than a 140/70 which will reduce the rear ride height changing the bike's geometry which will further slow down steering.

Just wanted to mention that, but if you are just after looks go for it. A 150/60/17 should fit no problem
 

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I run 150/60 and it's only 0.4 inches wider than stock, I didn't feel any difference in handling after the swap.

I think a 150/60 has a smaller diameter than a 140/70 which will reduce the rear ride heigh
Incorrect, 150/60 is 0.37 inches taller than the stock 140/70 which is the closest you can get to stock diameter if you decided to go wider.

By going 150/70, you are increasing your tire diameter by 1.55 inches. When your speedometer reads 65MPH, you're actually going 69.25MPH.

More info: http://www.discounttiredirect.com/direct/brochure/info/tmpInfoTireMath.jsp#row2
 

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I run 150/60 and it's only 0.4 inches wider than stock, I didn't feel any difference in handling after the swap.



Incorrect, 150/60 is 0.37 inches taller than the stock 140/70 which is the closest you can get to stock diameter if you decided to go wider.

By going 150/70, you are increasing your tire diameter by 1.55 inches. When your speedometer reads 65MPH, you're actually going 69.25MPH.

More info: http://www.discounttiredirect.com/direct/brochure/info/tmpInfoTireMath.jsp#row2

I was not going by the calculated diameter, I was going by what the manufacturers list. Bridgestone lists the 140/70/17 as 629mm and the 150/60/17 as 620mm. That would be a reduction in rear ride height of 4mm which is pretty negligible but still a smaller tire.

http://www.bridgestone.com/products/motorcycle_tires/products/battlax/bt003rs_h.html

I'm just saying that going with a bigger tire for looks is AOK, but it will have an effect on the handling. Whether you notice it as a rider or not will vary but the geomety will change.
 
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