If you know what generic that would be nice. I’m in the market for a new front end and there very very very few choices for under 40mm base bars. Going on to a an old Slice RS so 31.8mm clamp. Zipp, Vision and an Open mould are the only ones I can find at 40cm.
You still need them for starting / stopping, corners and occasionally climbing.
Unless you run the Morf-tech bars…which is I had a regular cockpit setup instead of an integrated one, I’d run in a heart beat.
Re: which TT frame is fast.
I did quite a lot of research here, and got a few insights, most of which I can share because they are publicly available.
The following tests have been conducted by the same magazine (RennRad) and therefore are at least to some degree comparable. I will however point out the flaws, that might or might not render the results void. It is one of the better indications there are.
So these are the results from 2017 - besides the P5X - all bikes are measured with ZIPP 808 front and rear - the Cervelo is measured with ENVE SES 7.8 Disc, and is the only disc brake bike.
The test is made at 45kph, with a non-pedaling dummy that doesn’t have an upper body (to not make body position relevant).
The two interesting takeaways for me:
The Cervelo P5 (UCI Legal, 2014 model) tests significantly faster, than the P5X (tri specific). Also, the fact that the Tri Specific Speedmax doesn’t test faster than the UCI Legal version is interesting.
They did a test with different bikes in late 2020 - which is interesting - but the test is protocol is awful.
The test is conducted at 45kph again - however bikes are from completely different price ranges, tested with the wheels pictured, not with standardized wheels, and without any rider/dumm. Kind of pointless.
Still, I am happy to see my Shiv TT perform so well, despite being tested with only 64 mill deep front and rear.
The PX is the fastest bike in the test - with a 404 front, 808 rear. With the PX being very very similar to the P5x, I kind of expect this to be the link between the two tests.
Not perfect by any means, but kind of tells me, that the P5 (2014 - UCI) is likely still among the fastest TT frames around - with its successor deemed as fast/ faster:
Too many cross references to be conclusive, I know. But very much in line with other test results I have seen (and also which have been posted here).
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these are what i have, dont look the best, work fine though
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I am hoping for wider wheels. Flo cycling claims their gravel wheel is their fastest, it’s just that you can’t fit it in your TT frame. But I’d love to run a 30 mil tire especially if it were faster!
Easier adjustment to front end for easy experimentation and different events.
Storage and hydration integrated
Extensions that follow your arm
Less weight just because
I would like my TT bike to handle like my Domane, I really don’t care for quick handling in time trials.
Brakes that actually work would be nice, either rim or disk
I’d like a longer bike, I want to be like Superman.
I think some kind of suspension could prove faster. Not like a suspension fork but more like a suspended stem and seat clamp.
Integrated day time running lights
I guess this is more of a wish list lol
Joe
@Joe hat is a really good list. Integrated lights is a great idea…
Handling and weight I care less about.
Ability to adjust for events very important (I do from 10miles to 12hrs).
Oddly, like you I have a problem with sizing having (apparently) short legs relative to a long body and end up on a larger frame to compensate.
Never wanted suspension. Changed from tubs to tubeless this year and, once I had the pressures right) it is so smooth on the undercarriage.
Biggst issue with my TT bike: My own flexibility!!! (oh and my legs)
This week I’ve done 2 TTs one involved coming on to a roundabout at 70kph to go straight ahead, then getting hit by a crosswind at that moment. The second had sections on a 2m wide bike path, when we were doing 50kph. I really really appreciated a time trial bike that had good handling. I see no disadvantage, because when you need it you really need it.
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In my experience… biggest effects on handling:
- Front wheel depth and winds, especially cross winds and gusts.
- My position. (being on the TT bars or base bar) and needing to sit up…
I have made bad wheel choices in the past 
A TT race through a 2m wide bike path!!! For goodness sake! Where was that? Who did the risk assesment on that course?
I’m 6’ 4" and with that whole “front center” UCI rule (or whatever it’s called), I’m not sure any tall person can get into a really solid position on the current bikes. But yeah, an option for a longer bike would be really nice.
LOL, I’m not saying my wheel choices are always the best either. And I appreciate a snappy handling bike at times. But at least here in the US the TT’s I’ve ridden have been completely non-technical. I mean, I know Florida is a flat place and, yes, some twisty, hilly amateur TT’s are out there…but this is the course for our state race
I mean, dead straight and right beside a canal, LOL. It doesn’t get any less technical. A stable ride so you can run deep wheels in crazy crosswinds would be pretty fantastic
Joe
Lol, something without a dead turn would be less technical. Ive only done a dead turn course once and amazingly I un clipped and reclipped smoothly, I doubt that would be the same if I was to ever do it again 
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makes pacing easy.
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Even if that doesn’t end up on World Tour team you’ll see them powered by dentists in on your local 10mile TT!
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Very unlikely that Hope will sponsor a WT team soon. While there will definitely be wealthy individuals who will buy this, I actually see this most at home in non-WT events such as nationals/ continental / Worlds
And maybe Continental Pro tour teams
Not in Florida weather. One half was cross/head winds and the other half was head and rain!
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I was thinking maybe on teams like Wanty Inter Marche since they have a different kit sponsor for the TT suits so maybe you’d find a team that doesn’t have a TT bike in their range.
Compared to some bikes whose design hasn’t really changed in a few years that thing is a spaceship.
Pro missile hydroformed base bar comes in at 40cm and 38cm if you can find it. Aluminium so not very light but super stiff and also quite reasonably priced !
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Thats the base bar I use mainly because as you say its quite reasonably priced which was ideal when I was experimenting with different extensions 
Interesting that it is being used, despite the frame clearly still being a track frame (high BB).
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???