I was just wondering if trends had changed or been refined with regard to seat types and angles, and to the geometry of the various bits of the bike? But with my uncultured eye, looking at modern bents, they still seem to be all shapes and sizes!
I think the same could be said for uprights.
I suppose there's a trend towards specialism for a particular purpose, which massively influences basics like wheel size and geometry. Also different engineering approaches to the same problems, for example telescopic booms vs movable seat mountings, both having their advantages and disadvantages.
While I love my SMGT, it's something of a truism that it can do everything except fast. n+1 (of radically different geometry, though I haven't decided what) is required for getting places sooner than "eventually".
And there's a lot of user preference, of course. Hardshell vs mesh seats. Steering configuration. That sort of thing.
And as henshaw11 says, folding is a current trend, for good practical reasons, and tends to lead to related design decisions (wheel size, etc).
Having spent some time with Kevin and his collection of ICE trikes, the steady trickle of refinements is apparent. Some are dramatic, like the folding ability, or the seat material. Others are a bit more subtle (have you seen how many different handlebar shapes they've used over the years?). It's all good.
