Bikes depreciate more than cars. Lots of reasons, but they just do. Even more so, accessories that you tack onto your new bike. Sad but true.
And here's a used Tern GSD with belt drive and a Rohloff for $8500. https://boston.craigslist.org/nos/bik/d/beverly-tern-gsd-14-cargo-bike/7605268245.html
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