Strange tire questions.

[Blackbeauty]

So I hope I'm not the only one who notices this and I hope I can convey this clearly. Why do some tires look more square while some look more rounder. I mean the corners. Here are two examples below:

In one, the corner that joins the part that touches the ground to the rim face has a sharper corner. What determines that, and is that a spec you can measure or specify?

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[Chad11491]

i think that's measured with tread width, and is just part of the design of the tire. Square, stiffer sidewalls for better turn in? not sure, honestly.

 

[Cascadia_302]

Also stretching a tire on a wide wheel will sometimes cause the round look.

 

[jasonstang]

Angle but yes some tires do look different.
Softer sidewalls will give you the rounder look.

 

[chedder]

It depends on the manufacturers filler piece as part of the tread design, contact patch and tread compound. Sticky tires tread wear of 120 or less will have a square shoulder versus say a 300 tread wear. Performance as opposed to cruiser.

 

[mike@vossen]

So I hope I'm not the only one who notices this and I hope I can convey this clearly. Why do some tires look more square while some look more rounder. I mean the corners. Here are two examples below:

In one, the corner that joins the part that touches the ground to the rim face has a sharper corner. What determines that, and is that a spec you can measure or specify?

Its based on the manufacturer and their design/engineering etc for that wheel. We actually take this into account when offering our custom fitments for our Vossen Forged Wheels.

So your observation is pretty good.

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