It's a Bike Shuttle Trailer. This one in particular seems to be the smallest one I've seen so far. I have a tiny car so I don't wanna be hauling a refurbished lawn care uhaul trailer. I want something that can carry 6 bikes and a toolbox just in case.
Ebikes, bicycles, scooters, skateboards, longboards, eboards, motorcycles, skates, unicycles, heelies, or an office chair: Whatever floats your goat, this is all things micromobility!
"Transportation using lightweight vehicles such as bicycles or scooters, especially electric ones that may be borrowed as part of a self-service rental program in which people rent vehicles for short-term use within a town or city.
micromobility is seen as a potential solution to moving people more efficiently around cities"
Recall warnings available here.
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It's a little sad that we need to actually say this, but:
Don't be an asshole or you will be permanently banned.
Respectful debate is totally OK, criticizing a product is fine, but being verbally abusive will not be tolerated.
Focus on discussing the idea, not attacking the person.
If you're going to make something like that, perhaps skip the axle and construct it on something like this. No additional registration, less drag while hauling.