It's up on the page and both sizes look to be in stock.

Will this new stem offer different stack options to the aeria stem? I am not of the long and low fit category and the only way to fit the aeria system on my bike currently is with all the arm pad spacers and most of the stem spacers.

I guess my trouble is finding out if a shop is selling V1 or V2 - its almost never mentioned. Does anyone know the Item Code, would PRD375593 be the old or the new version of the 70mm stem?

https://sportfactoryproshop.com/...ia-ultimate-stem-v2/

think you can get 15% off with first order.

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2019 T-Rex Tri Series

You can tell by pictures. The rear cable exit is far bigger on V2

Sounds good, thanks! I was wondering about mounting it under the stem behind the HSF mount, the argon’s brake is at the rear of the fork so there’s space there and the hole for the centre pull is redundant. Would be out of sight when the bottle was attached, just depends whether I den get enough wires through the gap! Possibly be a project for later in the year now.

Yes and no. The stack is different ~15mm higher. But it doesn't match aesthetically with the AU bar - it fits of course, but has gaps to the gussets in the basebar

Do you have any ideas about available lengths and internal cable routing capabilities of the upcoming stem?

No internal routing - it's a normal stem. Goes up to 120mm
Intended as a solution for the bottle, not the AU bars.

Has anyone done wind tunnel testing with the stem and bottle? I see some pros running it and it looks far more aero than a round headtube, but I haven't seen any numbers yet.

Do you have any details on the Di2 solution and when it might become available? I am still searching for a good way to hide the junction box and still make it accessible with a stem. Thanks!

Sorry - maybe it’s only not clear to me...

That new stem that you talk about, will I be able to use it to mount the Aeria Ultimate drinking system? Is that what you refer to as HSF Aeria „bottle“?
Not interested in the bar, just wanna get a good hydration solution on my Speedmax CF...

It's not a a new stem - it's a faceplate for the standard -17deg stem
Pics from Eurobike stand



Obviously it's not as pretty from the side as the AU stem, but it looks the same from the front, saves ~250g and costs less. Also not as low stack as the AU stem.

Got it...

Well the standard Aeria stem is about 90 euro vs the Aeria Ultimate stem which is about 110-120 euro.

Assuming the faceplate is not for free, it’s not really cheaper, but lighter at the cost of prettiness ;)

It's for the 1/Seventeen stem, which is 50 Euros
The faceplate adds a bit of cost, but it's still about half the price of the AU
Also gives more length options

Hi,

The stem that came with my Ribble is shockingly sh*t, but fully integrates with the food storage, bars and hydration system and looks neat.

Any ideas how the Aeria Ultimate system would look and if would look as integrated as what I have?

I can take as many pics and measurements as you like.

Cheers,

Pat.

It's the same as this one from Joe Skippers Ribble:

The AU stem would not integrate as neatly as that - you would have to stack it up a bit to match the top of the bento.
You could cut the shroud on the bottle in a similar way
The HSF Aeria bottle sticks a lot further forward.
I'm not sure there would be a meaningful gain for you, but then I don't know how bad the current stem is...

...just wondering: any news when the faceplate will be available? Thanks!

As a guess, probably March in the USA. Later elsewhere.
The people I'd normally ask are busy with a bike show this week.

Sorry to drag up an old thread. Has the different Di2 solution been released? If not, can you give any more details on when and what the solution might be?

Yes, it is the aeroport

Looks like this installed
https://forum.slowtwitch.com/forum/?post=7046468#p7046468

Looking to confirm the current stem specs for the Aeria Ultimate v2 stem.

Is the 70mm still -24degrees and the 100mm still -22?

Not sure the local distributor will know this important fit detail.

Thanks

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nz
rst, then slowtwitch lurker since '93

What's important is the 12mm stack. That's far easier to use for stack calculations.

The mold didn't change between the two versions, just the machining on the ports.

Local distributor will ask me as I'm one of their dealers

The dimensions are unchanged for V2 - it's just different machining of the same forging blank.
The best way to approach it is to look at the XY impact - 70 or 100 in X, 12mm in Y
Yes differences in HTA modify those numbers slightly, but it's still more accurate than using traditional stem calcs

I've back calculated into my system, which gives
AU100 112.8mm x -29.7deg
AU70 86.3mm x -35.2deg

Those numbers won't give a perfect result in the calcs you'll find on ST main site, but only a zero deg stem does so that's not out of the ordinary

Awesome and thanks muchly.

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nz
rst, then slowtwitch lurker since '93