I don't have much data about ST's and CT's but I think I have found another VIN year that can be used to get your registration. If you have a different idea about the year than I do, please let me know in the comments. Please share your knowledge!

Summary of the question:

What year does frame number ST50-54**** belong to for my Honda Dax ST50?

I have been able to determine that it is a Belgian type, but the year was much harder to find/guess.

The only lead that I was able to find was an auction site that shows an ST50 with a VIN starting with 50. This is determined to be 1972. It is also not uncommon for honda to use the SECOND digit as a year indicator. So, in all theory, on a sunny day, one could argue that your ST50 is built in 1976.

1972 : 50****
1973 : 51****
1974 : 52****
1975 : 53****
1976 : 54****

Source for the 1972 VIN:
Frame nummer ST50 502140
Honda - Dax ST50 - 1972
catawiki : https://www.catawiki.nl/l/13901647-honda-dax-st50-1972

It seems to have been a good time for Honda restaurations ;-)

Maintenance sheduled for the coming days (1900 CET)

I have discovered a bug which prevents me from making the website even more awesome. Of course, there is nothing in the log files so i will have to temporarily close the place so I can safely expose some process data. 

I also realise that my maintenance times are often cursed, but fear thee not, a backup is in place and with every mistake, a lesson is learned. (Don't you dare say that this would mean i'm an expert by now >_>)

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EDIT 1: CAPTCHA issue solved. For now. It's a bug in the signup form and the developer has not released any new version yet.
EDIT 2: Code is optimized for speed.
EDIT 3: TWO licences renewed thanks to YOUR donations! Thank you very much!
EDIT 4: More upgrades have been performed.

I'm sorry it took so long all together but here you go. A PROPER user menu, including a takeout form. All EU compliant and made for your convenience. Menu order has changed a bit as well and the structural work will be done as soon as someone buys me an airconditioning device. D: (So i'll just do it when the temperatures will be lower again.

... it will be fun, they said. But it will happen. It's high time to simplify things. And solve some bugs as well. And ignore over 1900 pages that might also need a cleanup. Just use search, please. :)

EDIT: At least one bug has been solved right now. Before you were redirected to the home page after you logged in. This was something I overlooked int he settings and has been set correctly now. You will now be sent back to the page you were, for example the page of the document you want to download. Makes sense, amirite?