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High bar does a lot for stiffness /resistance to bending on its length. Step through frames need huge girders to get anywhere near close to that of a high bar. On a regular bike there is a difference but its not bad, on a cargo its an issue.
UA if you have a decent load on you can feel the front end of the frame vs rear triangle twist under hard pedalling /cornering forces. On most of the trike cargo bikes (babboe /cristiana) that twisting goes from "sort of noticeable, but not an issue to an average user", to "holy fuck when you turn left, these thing bends so much the back end turns the other way" and you get a speed wobble at 8mph on a gentle left hander.Last year a group near me tried a few 2 wheel cargos, decided they wanted a trike for some reason (i think folk expect them to be more stable?) bought one online without trying one first (I had warned them but...). Thought it was great for kids. Then on 1st week of using it got a speed wobble on (10 to 15mph)lost control, and turned over into the road. Kiddos were fine as all had seat belts on,the dad got a sprained wrist, could have been worse. One wheel, bar and a brake lever mangled, but it'll survive.
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UA if you have a decent load on you can feel the front end of the frame vs rear triangle twist under hard pedalling /cornering forces
never felt front / rear stifness was an issue on the UA XL personally, have often had upwards of 200kg on the front.
yeah, it's quite frustrating how everyone seems to automatically gravitate towards trikes as 'safe' 'stable' 'foolproof'. they generally seem pretty dodgy to me at reasonable speeds having ridden a few
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On most of the trike cargo bikes (babboe /cristiana) that twisting goes from "sort of noticeable, but not an issue to an average user", to "holy fuck when you turn left, these thing bends so much the back end turns the other way" and you get a speed wobble at 8mph on a gentle left hander.
I rode a Christiania for the first time a few weeks ago and I was really surprised how wibbly wobbly it felt. I want to say it's probably not a problem because they're mostly ridden (stereotypically) slowly by mums with a couple of small kids onboard, but there's a mum round here who absolutely smashes her one up the road! Always impressed by the way she hauls that thing.
Another thing ALL cargo bikes should have. Whats the point of not having a non step through frame?!