If you want to rent a bike for cycling in Tuscany, there are many places where you can do so. Here are some of the most popular places by destination.
Contact them for pricing and availability
http://www.e-biketuscany.com
Ebikes only contact them for pricing
https://www.sangiebike.com
Ebikes only contact them for pricing
https://ebike99.it
Road, hybrid, ebike starting at 25 euros / day
http://www.sienabikeshop.it
Road, hybrid, ebike starting at 25 euros / day
https://www.dfbike.it/en/home-en/
Touring / hybrid, road, ebike startin at 29 euros / day
https://www.florencebybike.it
Hybrid bikes starting at 22 euros
http://www.florentbike.it
City or e-bikes starting at 45 euros / day
https://ebiketravel.it/affiliati/e-bike-travel-firenze/
City, road or touring bikes starting at 15 Euros / day
https://www.tuscanycycle.com/bike-rental-tuscany/
Trekking road or ebikes starting at 22 Euros / day
http://bye.bike
Contact them for pricing
https://www.chiantibicycles.com
Trekking road and ebikes starting at 20 euros / day
https://www.ramuzzi.com
Road and ebikes starting at 37 / day
https://www.ciclismoplus.com/rent-a-bike-in-tuscany/bike-rental-in-lucca/
Life is like riding a bicycle. To keep your balance, you must keep moving.