Julia rode the bike by herself (for some short amount of distance, under dad's supervision) for the first time on 1 March (2019) [1]. Without much training in between, as we had little opportunity to practice, it only took one month before she could master the full process all by herself, including starting the bike (on 1 April (2019)). All this training took part in the closed-to-circulation part of Tres Cantos, which is ideal for this purpose. On 25 April (2019), she went (with me) from c. Girasol to the Recinto Ferial del Parque Central (through the parc, so there is no cars), thereby completing her first purposeful bike trip, with climbs and downhills on unequal terrain and natural traffic (people, dogs unleashed, no other bikes on this occasion but many runners, etc.)