XC = cross country : relatively simple routes though certain parts could have some technical passages. Both hardtail (with just front suspension) and full suspension bikes, with more or less shock absorption are suitable for these tours.
AM= alla mountain : on these itineraries you can find harder technical sections, where a full suspension mountain bike with at least 120-130 mm travel is suitable, allowing you to get the most out of the descents as well as the climbs. Knee guards advisable!
EN= enduro : these are the most technical and challenging trails, where we can find however flowy parts letting our bikes run smoothly, but mainly rough and rocky sections where it is best to have a 150-160 mm travel bike (enduro bike) making most of their movement! Knee guards are a must!