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Lifepo4 charging is nothing new to me, don't know why you elaborate on that, like I wrote earlier, I studied Lifepo4 in more depth than anyone I know personally. So, don't worry about me not understanding my batteries. 
If everyone understood their batteries like I do, none would burn, none would explode, none would offgas, none would leak, none would be wrecked in under a mediocre 1000 charge cycles.

I hear, Zero bike batteries don't do more than that. ??

All my batteries in the past have had >5000 lifecycles before they even reached 80% SOC.

"Go look around on the internet, do searches on Charge Controllers,"
Like I wrote: "DDG cannot find ANY such highly rated solar charge controller. "
DDG means Duckduckgo. I detest google.

"If you look around I am sure there are others which will let you go even higher."
Nope.

"I know i seen them before"
Cool. Can you remember where? 

Either way, as modest as always indicated, I am not sure it needs a solar charge controller rated for ~86V system.

Aaron: "You can absolutely charge your bike from solar!  I do it all the time at home here." ??
What is the voltage YOUR battery is running at that you charge "all the time" straight from solar? And with which CC?
I may have missed that.

"May I recommend a website called batteryuniversity.com" ?
OMG, please not, no.
I've been amazed for years, how many people fall for that pseudo wisdom I've found on there.
Is that just because it calls itself "university", I wonder?

For tomorrow we have ONE day sunshine forecast (but frickin cold), I don't think I will be able to install my Fardriver 72360 controller....

The wiring (see my earlier post with the complicated mess under the bike's decking) looks so elusive, it will take me a good while to get my head around, which wire does what.... 
A few wires I identified the other day, just before the rain returned.

I need to be careful: Don't want to blow up my costly controller.

Woah, those are some decent charger cables, yes! Such I don't have (nor have seen here).
Your bike there is that the 17.6kW Zero (I thought I understood you mentioned) ?
That looks like a serious bike also, like your plugs.
Yes, way more professional than my setup (even the planned one).

The DC - DC solar charging you do would interest me. Then again, I reckon your system is so much bigger that I cannot replicate your way anyway.
Just maybe it gives me an idea, how I could do it for my "baby" system.
 

Okay, I looked up images for all the plugs and adapters and sockets you guys have mentioned. I haven't seen one of them here, no, sorry. I did watch a video of a guy who showed "all" (he said) types of plugs /sockets available at "super(?) chargers" in the UK. None of the 3 (no more) I would be able to use for my baby bike, no. Not sure if a Harley or Energica could use those.

The IDEAL, would be we charge DC to DC. I wanted that for my tiny home (fully offgrid, charging straight from solar), but on a solar forum everyone (rightfully) advised against that: voltage and amps just fluctuate way too much to be safe (good) for battery health.
Like Aaron already pointed out: chargers must match the battery. It would be impossible for me to build the "smart" electronics he mentioned, to replicate or emulate the stock AC to DC charger. I won't even try.
So, I will keep charging the bike (stupidly) with the AC to DC stock charger, despite that my AC first comes from DC also! Each step has conversion losses....

then made pigtails to plug into that that were

Do you have a photo of that? 
It may give others an idea (me too)

Very interesting, thank you.

You are indicating that your custom bike will have a household input, but you want to use a public charger, right?  I don't believe it's possible.  You definitely cannot use DC fast charging stations.  In theory you could use a public if an adapter existed, but that seems very unlikely.

Yes, such adapter I was after. "that seems unlikely", pity!

I should go looking around to find some public charging stations and have a look. Thing is, in this country (currently!) I have never seen a public charging place anywhere, lol!
Hence why I am slightly concerned for the planned long road trips, and have ordered another battery from the same Chinese guy.
I was THINKING if old-style gas stations (petrol stations here) let an ebike owner plug their household plug into one of their wall sockets? Or which other "shops" might let us do that? Basically, I fear, everytime I need to recharge, I have to fill myself up with another 5 course menu to be allowed to recharge at a restaurant?

I wonder what other ebikers' experience is there?
As I don't use fb and any such thing, I have no contact to ebike rider groups, if such exist. (not here anyway, I bet)

Bikes do charge like cars, mostly. Mainstream bikes and cars have either public station AC inputs (Zero)

What would "public station AC inputs (Zero)" look like? Do you have a photo of plug / socket?

My zero has 17.3k and charges at 6.6k.

Woah, that I consider very fast! 6.6kW here no household socket can output, afaik (16A *230V is standard max). Thus your Zero can charge at almost twice that max.
Do you have a suitable charging socket at home? And publicly available also?

To answer your question: If the ship from China delivers(!?), I hope to soon have up to ~150Ah * 76.8V nominal = 11.5kW.

"My zero has 17.3k" - Unfathomable for me.  How many miles can you go?? Or, rather (as I count that way): What wattage do you use per km, on average trips?

I noticed, the riding style has more influence than anything else! Except to demonstrate to others, I avoid "fast starts / acceleration" now. Hills here, I cannot avoid, unfortunately. They cost wattage too. When I just keep on flat roads "in the flow" (same, low, speed), the bike uses "almost nothing" (under 20W/km).

The Ukrainians, in their RideBikeShop videos, on their "Long Range Performance", went in a video for an hour at top speed on a highway (I watched the whole video, yeah). 
I like their videos a lot (though don't understand a word). I was going to buy from them, that bike. But then they stopped responding. I read in the news, "all" men were drafted. Terrible situation there!!    

What do you mean?

The small stock one goes under the seat (where the lose cable is). But the two new large ones that are being shipped from China, one will go in front of the stock one (you see the huge foot area, very useful under the seat!), and the other will go where I have today taken off the rear seat (ie just in front of the new topbox).

While that is "high in the air", I figured it's no higher than a pillion's bum (and a pillion weighs way more than the battery). So I think it will be fine (as long as I don't come off the bike!!). 

Another reason why I ordered both batteries in metal cases. To protect them against falls, to a degree.

There are so many cords out there now it's crazy. 

Thanks Aaron. This sounds like you have much more insight than I have: Do you know of such one?
- I've been trying to find out which cabled plug I could take on long road trips (once I get my two new big batteries) that would enable me to use the "typical" mall / supercharger / whatever sockets to charge my EV bike?
- You know, I mean, public charging places.
- Basically, I am a little concerned how, and if, I may find sufficient places where I can "quickly" recharge my batteries while traveling?
- The batteries are custom-built for me (some nice Chinese guy on Aliexpress) and come each with a 10A charger only (although I have now asked him if for the 2nd battery order he can upgrade me to a >10A charger, and how many amps the batteries can be charged at all. Safely. Not reducing lifespan.
- So: The chargers come with standard wall 240V wall plugs (here in Europe)
- I've read of some "delta-q" and other, speedier, chargers, but have no clue what to look out for, as I don't even know what is common at public charging places.... (never had an EV until now), and bikes don't charge like cars, you know.

Has anyone of you gone on long road trips, and learned how to "quickly" recharge your batteries?