Generally this is the sort of thing that would be regulated in a highway code. So I did some rummaging, and after all the AI generated/machine translated nonsense for tourists renting cars, I eventually found the actual road law (link is to a pdf).
In article 174 there is the following:
- The norms of this article and of article 174 are applied to vehicles that circulate on highways, on main interurban roads and on other roads that have structural characteristics similar to them […]
- The circulation of the following vehicles on the highways and roads indicated in point 1 is prohibited:
a) carts, pedal vehicles, mopeds, […]
In the original Albanian this is mjetet me pedal. Input from an Albanian speaker would be helpful as I Google translated, but I would reckon that pedal vehicles is meant to include bicycles, tricycles etc.