I have one for my hybrid and I think I picked it up at Target for about $10-15. Could not tell you the brand, but it fits on the back of the left chain stay. The one in the pick is close to mine, and it should not interfere with anything your hauling.
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Brian | 2025 Trek Checkmate | 2025 Lynskey Elysium | 2022 Trek FX Sport 5
you should learn to embrace change, and mock it's failings every step of the way.