Thanks for your feedback.
The website is perfect to see pensions providing bike rental. Some are really close to the Mountains so they could be great to start. Just need to find how to get there
I actually don't have a planned route yet but basically, we're two people arriving in Cluj on April 30th and planning to leave for the Apuseni mountains on May 1st and come back to Cluj on May 5th to visit the city then on May 7th/8th do daily expeditions around Cluj such as Turda, Remetea and maybe Corvin but looks a bit too far. That's the idea!
In the Apuseni moutains, we're looking to discover the landscapes and see the nature, get some fresh air, discover the local life by cycling around. So not necessarily do a heavy load of cycling every day but discovering the nature by bike and get in the mountains and the forests by bike if possible. And stay at pensions at night as we won"t have equipment for camping. We thought that early May is gonna be too cold for that maybe.
Thanks for your help,