this post was submitted on 13 Jun 2024
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Imagine designing a bicycle without triangles. Every joint needs to be overbuilt, because there's no structure from the geometry. But you make sure it still has a top tube, so its just as hard to mount and dismount as a normal bike. Incredible!
Yeah why not keep the seat tube and delete the top tube?
Compliance but this is a very very extreme example - you'd hit a bump and the top tube would flex, kinda like a diving board, and smooth out the harshness. I'm not even sure this bike exists but that would be the practical purpose of such a design, but most manufacturers tend to go after the seat stays (Salsa Warbird, Bianchi with Counterveil, Moots Routt YBB) or decouple the seat tube from the top tube and allow it to flex due to seat tube angle (Trek Isospeed). Carbon's kinda fickle and engineers are constantly trying to figure out how to finesse it into feeling less jarring and rigid
This bike does not exist. This is part of a series of theoretical renders from what must be 15 to 20 years ago. When carbon fiber was kind of a new material to the general consumer. The premise was they could not only reduce the weight of the material but because carbon fiber was this space age super material that could melt your tits off if you looked at it sideways, that they could also reduce the need for structural materials like spokes and triangles. Making a featherweight racing bike. Most of the designs had absolutely no way to steer them.
I was gonna say, the frame just looks a little too outlandish, totally ignoring the wheels and headset.
Once in a while a bike comes along trying to reinvent the triangle but none are particularly good, often worse than tried and true. Superstrata Classic is a perfect example. Making a 2 triangle frame and adding just a hair of compliance around less-critical spots seems to be the winning formula