Alright -- as I said, this is quite complicated. English isn't my first language, so I'm not even sure whether the following explanation will make any sense to you.
First of all, you should distinguish between two types of equipment adding:
1. The equipment you want to appear in the equipment selection menu (which is what you want)
2. The equipment that's pre-selected by teams
That's why you have double lines of most equipment. In the following, I will explain point 1.
In the Daily DB, there's plenty of space available within the Standard Frames category, so there's no reason to add another marque. Therefore, we're going straight to STA_equipment.
First, add two new lines - one for the road frame, another for the TT frame. Make sure to give them unique IDs in IDequipment.
As far as I understand, you understand everything up until gene_f_unlock_cost - set this and gene_b_is_locked to 0.
Also set gene_tgaID_photo to 4014 and fkIDequipment_material to 1.
This leaves us with the two important columns: fkIDequipment_unlock and fkIDequipment_marques.
Let's start with the latter: fkIDequipment_marques.
In the PCM.daily DB, the standard frames are categorized alphabetically, so if we want to keep that, you should place your Principia frames within Standard Frames 4 which has the ID 5 (check STA_equipment_marques).
Therefore, both your RR and TT frame should have "5" in fkIDequipment_marques.
Next up is the fkIDequipment_unlock:
In Excel, it's possible to filter columns - that's what I do, so I only see the relevant equipment that has "5" in fkIDequipment_unlock.
This brings up the equipment which you will see if you click "Standard Frames 4" in the equipment selection menu in the game.
To make it easier for yourself, reset fkIDequipment_unlock - clear the cells, so there's no info.
For some reason, the game requires the Time Trial equipment to be on top, so I want you to sort first by name and then by gene_b_is_time_trial (largest first).
Excel will then show you the equipment by alphabetic order - with Time Trial equipment first.
Alright, from here, it's quite easy.
Put a 0 in fkIDequipment_unlock in the first row from the top (in your case, it will probably be Pinarello Chrono). Now, copy the IDequipment from the 1st to the 2nd-last (which will probably be Specialized Venge Black), copy it to Notepad (to avoid problems), copy it from Notepad and insert this below the 0 in fkIDequipment_unlock.
This might not be possible in Excel (it tends to screw up because of the filtering and sorting). If it does, undo your copying and manually type in the numbers.
Three screens to make it more understandable:
https://peecee.dk/uploads/102011/Ex1.png
https://peecee.dk/uploads/102011/Ex2.png
https://peecee.dk/uploads/102011/Ex3.png
In other words: fkIDequipment_unlock is the equipment_ID of the frame that you want above the one you're working with.