Closest I can figure are an earlier version of yakima "big stack" sticks for kayak boat carriers.
Just a wild guess.
Edit- got it
https://goodfangsm.life/product_details/38219140.html
Tonight- about to go in for the kill on tonight's debut ride of the trash can gravel-trek-shiki whatevertheeff' reveal. Panniers and all! 
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marginal gains enthusiast
Last edited by LEAKYSEALS951; 08-09-2023 at 06:20 PM..
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