Cyclebum

I want a post mount that will tilt back and forth, depending on my position. Upright, it would tilt back a little, stretched out, forward a little. Maybe a spring action to reduce horn pressure automatically.

Is this too far out? Unreasonable? Would there be a market? Would I be the sole customer? Would you buy one too? Is there such a thing?

Camel

I don't know that there is such a thing.

CranBrothers makes a seat post with a remote adjuster button you can attach to your handlebar. I think this post only adjusts up/down.

fietsbob

either consider a vastly different frame.. Bernie Mikkelsen has a ride around bike to adjust lengths and angles to design a custom frame by riding an adjustable one 1st.

Or, you might adopt some Brompton parts.. their Saddle adapter pin clamps on top of a plain seatpost.
theirs or something else.. It offers a horizontal tube

then you clamp a saddle clip onto the SAP,or on the seat post ..

Brompton has also made a nice saddleclip, so It allows a vast variety of angles . stepless and mostly aluminum.

Machka 

WHY would you want something like that? I think I'd find it incredibly annoying. I have a suspension seatpost on our tandem that goes down and back when it engages. If it does it unexpectedly, it really throws me off my pedal stroke. I suspect a seatpost like what you describe would have the same effect.

staehpj1

I doubt that such a thing currently exists. I personally would have no use for one and doubt that there would be a market, but who knows...

Burton

So what would be the difference between this and a loose seat? Most riders complain when the tension bolt on the rails isn`t tightened enough and the teat can rock while they`re riding.

Bacciagalupe

I think the closest you could get is a Thudbuster. It's actually a suspension seatpost, but it moves at a diagonal rather than straight up and down.

Another option might be a "noseless" saddle. However, keep in mind that most people use the nose of the saddle to steer the bike, so it will take some getting used to.

Cyclebum

The idea came about because when I stretch out a bit, especially when using the aeros, the pressure from the horn becomes really annoying. If I tilt the saddle down to fix that problem, when I sit more upright, the downward tilt is annoying. Figured others must experience the same sort of irritation with a fixed tilt.

I think a spring action mount would work, but as there is no such thing, and I'm no engineer, guess I'll continue to be annoyed.

xyzzy834

I had the same problem.

I fixed it by dumping my (almost) universally vaunted Brooks B17 and switching to saddles that were almost dead level from nose to back. The B17 has a pronounced ramp near the rear, especially when being sat on. It's also a bit slippery because of the smooth leather. To compensate, most people set the Brooks up with the nose slightly elevated, like this:



That creates the "hammock" for the sit bones that lots of people like. I don't because of the pressure of the nose when I'm in the drops. I don't like the B17 tilted down where the nose is more level because I slide forward when I'm on the tops.

I solved the problem for myself by switching to saddles that are nearly level from nose to rear. These saddles give me much more of a feeling of my sit bones being perched on top rather than squashed into the saddle. I use a Selle San Marco Rolls for my touring bike:


and Selle Sam Marco Regal saddles for my sportier bikes:


I actually get a level out to set them up level to the ground. I've been much happier with the way they work for me.

fietsbob

There Was a Campagnolo seat post designed by engineers ,
that were not from Mount Tamalpais region.
[& didn't ride off road , more than maybe a Cross Race .. perhaps]
they at the time had a 1 bolt stepless seat post to saddle rail mech,
and learned about .. mountain bikes have a QR seat post
so they thought ... quick release seat post?, and so machined a nice Mountain bike long seatpost with a QR lever on that 1 bolt..


Now, that would be an example of a no tool seat angle adjustment..