Tourist in MSN

My advice is that if you do find something there that you can't buy here, make sure that the dealer or retailer can provide any paperwork you need to get the VAT tax refunded once you leave the EU. And since I have not done that myself, I have no clue what you would need to do or what to ask for.

I have bought a lot of stuff over the years from:
https://www.wiggle.com/
https://www.chainreactioncycles.com/us/en
https://www.planetx.co.uk/
https://www.sjscycles.co.uk/
https://www.evanscycles.com/
https://www.probikekit.com/
Above is in the UK, the following are from Germany.
https://www.bike24.com/
https://www.starbike.com/en/

In all cases I ordered the stuff for shipment to USA, the mail carrier or DHL or other shipping company delivered it to my door. I did not have to pay VAT when the stuff I ordered was shipped to USA.

My point is that anything sold in Europe is generally available to be shipped to USA. I ordered my Rohloff hub from Europe, I probably saved $500 USD on the Rohloff hub alone.

There are a few exceptions, probably the most well known exception is that Ortlieb has told their European vendors to not sell to USA buyers because USA retailers get quite unhappy when European sellers can significantly undercut them on price. My Ortliebs were all shipped to me from Europe before Ortlieb implimented that policy, I saved a lot of money by ordering my Ortliebs from Europe.

Since those internet vendors I listed above likely undercut any retailers you shop at in Italy, you might not find the bargains there that you can find on your computer from home.

If you might be shopping in Europe for bike stuff, bring a luggage scale so you can keep your luggage within the airline weight limits. A good luggage scale is the travelers best friend. And know what the limits are.