Puncture Vine • Goat-Head • Caltrop • Tribulus terrestris

KNOW THINE ENEMY.
A Photographic Guide For Bicyclists.

{The coin I am using for scale is a U.S. Quarter (25 cents), about 24mm across}

Puncture Vine prefers full sunlight, hot weather and hard-packed, bare soil of poor grade,
usually with gravel in it, a noticeable inconvenience when trying to pull it out of the ground.
If you get a tire that goes flat in just a few seconds, it’s usually from one of these bad boys.
And it’s frequently several thorns at once.
I’ve pulled out as many as 40 thorns from one tire.
If you’re fixing your own flat, feel (carefully!) the inside of the tire for offending matter,
or you might just flatten the tube again!

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