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Are wider tires taller?

Old 09-13-13, 01:48 PM
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FatBottomedGirl
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Are wider tires taller?

Hey chaps,

I have a bike with rims wide enough to have as wide as 42mm tires.
But it came with 35mm and the top of the front tire *just* clears under the fork.
If I go wider, will it be taller and will I have clearance problem under the fork?
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Old 09-13-13, 01:53 PM
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dabac
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Tires, when mounted and inflated, take on basically some sort of horseshoe shape - so yes, they grow taller/higher as they grow wider.
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Old 09-13-13, 02:09 PM
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Grand Bois
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Bicycle tires are round is cross section.
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Old 09-13-13, 02:29 PM
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Originally Posted by Grand Bois View Post
Bicycle tires are round is cross section.
+1, since they all have a round profile (100% in car speak) the wider they are the taller they are. Usually not an issue, but it can raise or lower the BB height of a mtn bike by over an inch.

On a road bike the biggest issue is fork crown clearance, which is why many mid to upper end bikes are limited it possible tire width. A bummer for a heavier rider or someone who lives where roads are bad, and could benefit from wider tires, yet wants to ride a high performance bike.
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Old 09-13-13, 03:12 PM
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Makes sense,... thank you!
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