The Baia Mare area has 70km of mountain biking trails. Try the steep climb over Gutai mountains (road), then turn left over the peak to La Izvoare, on dust & mud. Quite solitaire area, with amazing lanscapes. Speed downhill after Izvoare, then some relaxing 20 km roam around Lake Firiza, then back to Baia Mare.
Overall, Baia Mare - Izvoare is the 2nd most popular mountain bike trail of all 2 mountain biking rides in Romania.