what's the meaning of chevron knobs?

[cresnet01]

I'm trying to translate a text about tires and I don't know the meaning of this words.

Thank you.

[Skillgannon]

MTB would probably be the place to ask, but I just did a quick google and came up with 'Square, chevron knobs are good for hard packed ground and fast courses, and sometimes as rear tire in the mud.' so Chevron would be a regular square pattern of knobs on the tire

But I think Chevron indicates a triangular pattern, so I'd assume its square nobs arranged in a triangular pattern, or just a triangular tread pattern

[Skyleth]

the above shape is a double chevron