Yeah, I missed the 5000€ price tag for the RS frame set. I was looking at the “normal” non RS version in the configurator on their website. And that seems really reasonably priced.
And yeah, integrated bar stem can be a pain, but it looks so good though 
Weirdly it states €2,299.00 for the normal Astr, but you can’t order it without configuring it and the cheapest paint option is +400E so it’s actually 2699 and 5400 for the RS.
ASTR
RS
The upside is 392 reach in a ‘small’ (550 stack), so you’re riding 1-2 sizes down from most other bikes unless you’re one of the weirdos who wants a short stem (which only works on mountain bikes because you have wide bars, but wide bars are not aero so short stem + narrow bars not clever).
If you compare to say, the Backroad FF being specced for a 45mm vs 52mm (or 47mm with 2x). Is it worth basically doubling the price of your bike? 52mm still won’t take Race Kings.
Rose claim 1020g for a medium frameset, so I guess if you went with the Astr normal you only add 60g in exchange for a few more mmclearance.
52mm won’t officially take Race Kings. But i’m pretty sure they will fit just fine.
The Felt Breed Carbon (I know, I’m not a DJ fanboy but it’s the best example) has official clearance of 50mm and the 2.2" Race King fits.
And even if you go to a 2.1" tire like the Thunder burt. The ETRTO is 54mm. That’s only 2mm more than the stated clearance. With the Rose it would be 10mm more than the stated clearance.
Very solid geometry. I have a mosaic gt-1 45 showing up in the next couple weeks with custom geometry. My reach is the exact same as the Astr medium (406mm), my stack is 5mm less, and bb drop/headtube angle are exactly the same. Looking forward to the geometry.
Trying to figure out this schematic of the Astr’s handlebar assembly. I don’t think I like it! If they offered an optional upper headset spacer to allow under-stem routing and use of any bar (as Enve does) I could be on board, but a fully proprietary barstem with mandatory internal routing is a dealbreaker for me.
I haven’t dug into their fork/stem details, but from that drawing, it looks to me like they use a nice and simple “D-shaped” steerer, with a shim to accommodate the round steerer clamp of the stem. Some companies like 3T and Allied have taken to a system that is truly incompatible with any other system. Ridley looks to have done it well, and I know their Falcon aero bike is compatible with standard bar stem combos, and they offer a spacer to use such. With the prevalence of third part companies offering 3d printed parts, you could adapt nearly any stem and bar to this bike. Yes internal, but if you’re looking at this bike in a “Racing Gravel Bike” thread, you likely want that…
On the other hand, DJ has said he’s never had a gravel bike where he didn’t have substantial rub on the chainstays, which people would consider an issue
FM-GV201 NOAH Carbon Gravel Bike Frame – TIDEACEBIKE
Heavy (1150g in a size '52") but excellent geometry, very cheap, 50c clearance and an internal storage box.
Frankly as a 6ft rider, I could get away with “49” - 391 reach plus a 110 stem and a 36 wide bar would be fine; so it would probably be under 1100g for the frameset. In fact the stack is low enough that you could get away with a suspension fork without ruining the geometry too much.
Wild…I’m 5’9" and would need the 56 and a 110 stem.
Are you looking at the right column?
The “56” has a 60cm top tube and 404 reach. Add a 110 stem, that’s a bigger bike than Josh Tarling rides, and that’s only 13mm longer than the
Do you have the arms of an orangutan? 
Not seeing where the 56 has a 600 top tube. It looks like it has a 584 top tube. Regardless, top tube length is pretty much irrelevant to me…I primarily look at Stack and Reach (and BB drop).
My 56 Crux currently has reach of 397 and a Stack of 578. I have a 120 stem and 25mm of spacers (10 of which I added prior to Unbound so I could raise the HB and use aerobars. I decided against the aerobars, but stayed with the higher HB height).
The 56 above has a Stack of 582 and a Reach of 404. So I would reduce my spacers by about 5mm and run a 110 stem to get roughly the same position.
And I am about as average as you can get for someone 5’9"…but I do prefer a long and low position. I can’t even imagine riding the 49 at my height, let alone at 6’!! But everyone’s fit is different…as long as it works for you, that is all that matters. 
I just always find the differences surprising sometimes…
Fit is just so personal!
For me, leg length, torso length and lower back flexibility affect frame sizing more than height. I’m only 5’ 7”, but I have long legs (31 inseam) and limited back flexibility- I can’t ride with my back flat for any period of time while applying power.
Even though my height (and leg length) suggests a medium frame, that only works for me on mountain bikes. On road/gravel bikes I need to size down (I’m typically a small or XS), with enough spacers under the bars to accommodate the much higher saddle height that I also need.
I havent reviewed every sizing calculator out there, but when I use Canyon’s, it seems to differentiate between leg and torso length, so I often get more appropriate sizing recommendations (based on my experience) than with height-only calculators…
I have the flexibility of a 2x4 board, but I can still get long and low by rotating my hips. When I was doing triathlons, I could ride for hours in a very low, stretched out position with zero issues. In fact, a few years ago I did the old Traditional Base, High Volume program in the winter and set up my tri bike on the trainer because it was the most comfortable position for me.
That’s bigger than the bike Josh Tarling rides at 6’4 
, two sizes bigger than Ganna!
I guess adding stack reduces effective reach. Must be super stable!
Anyway I’ll leave be. Waiting for them to get back to me about the weight of a clear coat ‘490’.
Ganna rides a 59…
Those are the measurements of the 58 crux I think… We need to see pictures of you on the Crux - that reach with a 120 stem is truly crazy for an average proportion 5’9" person.
I’m not sure how you’re getting a ‘low’ position with that much stack, I would expect you to have near zero saddle to bar drop.
I could get away with riding that bike, at 6’5"
No, it is the 56.
LOL…not even close. I have PLENTY of drop. And no, it is not “that much stack”.
I guess if you want to be bolt-upright, you could.
No. My Crux has a stack of 578. I, myself, said that I have 25mm of spacers…so my effective stack at the front is now 603.
As noted, I added 10mm of spacers so I could run aerobars at Unbound. So my effective stack prior to Unbound was 593. I just haven’t bothered to remove the extra spacers yet (I’m lazy like that).
Glad I got that quote above before you heavily edited your post, though…
I honestly don’t think you understand bike geometry.
here is my bike following a shakeout ride in Emporia.
Someone please tell me again how I have no HB drop or that I have a tall stack. 
At 6’5" on a 56, he would have no reach so there is nowhere for someone his height to stretch out on a 56 frame. So yes, he would be very upright (with an upright stem to compensate for the low stack).
This is pretty basic bike fitting…if you put someone on a bike that lacks sufficient reach, they will be upright.
