Will this rear rack fit on my Diverge?

I have the 2022 Specialized Diverge (size 58) [https://www.specialized.com/us/en/diverge-e5/p/199973?color=322137-199973](https://www.specialized.com/us/en/diverge-e5/p/199973?color=322137-199973)

Just bought this rear rack:

* Topeak Super Tourist Tubular Bicycle Trunk Rack DX with Side Bar for Disc Brake Bikes
* [https://www.amazon.com/dp/B000ZKHN6Y](https://www.amazon.com/dp/B000ZKHN6Y)

And this trunk bag to go with it:

* Topeak MTX Trunk Bag DX
* [https://www.amazon.com/dp/B0187ZRLX8](https://www.amazon.com/dp/B0187ZRLX8)

Worth noting I’m also getting this 125mm dropper post installed:

* PNW Components Rainier Gen 3 Travel Adjust 27.2 mm Dropper Post – 125 mm
* [https://www.rei.com/product/203389/pnw-components-rainier-gen-3-travel-adjust-272-mm-dropper-post-125-mm](https://www.rei.com/product/203389/pnw-components-rainier-gen-3-travel-adjust-272-mm-dropper-post-125-mm)

And getting these new tires put on:

* Panaracer – GravelKing SK Plus Tire (700 x 43)
* [https://www.gearx.com/panaracer-gravelking-sk-plus-tire-tubeless-folding-protite-protection](https://www.gearx.com/panaracer-gravelking-sk-plus-tire-tubeless-folding-protite-protection)

I read online that people have had some issues setting up rear racks on the Diverge and have needed to purchase additional seatpost clamps, like this:

* [https://www.amazon.com/Vincita-Seatpost-Clamp-Carrier-Fixation/dp/B07KM1HS6F/](https://www.amazon.com/Vincita-Seatpost-Clamp-Carrier-Fixation/dp/B07KM1HS6F/)

Do I need to buy one of these? \^

Will this rack fit well with the new tires?

Will the dropper post be pretty much rendered useless while I have the trunk bag on?

Wondering if anyone else have this sort of setup or has thoughts on it?

by cburke3443