This seems wildly impractical to me and I doubt this solution is good for the structural integrity of the bike.
It will take long, especially if you have to readjust the ride height every time you want to use your bike. You will also only be able to park your bike at pole, not in a bike parking spot or storage facility.
FttH with Ubiquity Unifi USG Pro 4 router (fiber goes straight into my router, no provider equipment) connected to a Netgear MS510TX switch.
I have two ubiquity access points and the controller runs on my NAS in a docker container.
If I were to build it again I'd have a look at the TP Link Omada gear, I hear good things about it.
It will take long, especially if you have to readjust the ride height every time you want to use your bike. You will also only be able to park your bike at pole, not in a bike parking spot or storage facility.