It began September 22, 2004 with a demonstration that attracted over 4,000 people. Not a bad turnout for an inaugural event, and the number grew quickly year to year. Ten thousand took part in 2005, 30 thousand in 2006, and in 2008, a staggering 80 thousand cyclists rolled around Budapest as part of the Critical Mass demonstration. The turnout set a record for Critical Mass worldwide, a record that still stands today. A blogger from the San Francisco Critical Mass community even wondered in 2009, Why is Critical Mass Budapest So Huge?
The blog's author made some interesting points. He asserted that the rapid rise in the number of automobiles in Budapest provoked a strong reaction among inhabitants concerned about the declining livability of the city. The blogger wrote: "When I arrived in April 2006, I saw major promotional materials about the ride in the most unlikely of places, by San Francisco standards. The free tourist booklets advertising hotels and nightlife were promoting it - on the front cover. Full size billboards beside the Danube River were promoting the ride. In the newspaper editorials, party bosses and union leaders from all political lineages were promoting the ride. Recumbent bicyclists were promoting the ride with large sign board trailers. Needless to say, I had to participate."
He was not the only one to become so enthusiastic about the event. By the end, Critical Mass Budapest was no longer even a protest. It had become a fun, leisure event that inhabitants looked forward to two times a year, in April and September, when youngsters, elderly people, families with children, hipsters and crazies turned out into the streets with their dogs, flowers, ghetto blasters or other props to celebrate people power, the bikes and the city. Of course a mass protest would mean nothing if it had no impact on the everyday life of Budapest. But it did have impact. Year after year, more and more bikers showed up on the streets of the capital. Meanwhile, city leaders have taken notice, responding to some of the concrete requests. Each passing year sees a growth in the kilometers of bicycle paths along some of the busiest thoroughfares, from Andrassy Boulevard to Bajcsy-Zsilinszky to the banks of the Danube and beyond. Even the arch-enemies, the city's motorists have become more tolerant. Critical Mass played an important role in this change, making it the quietest revolution ever in Hungarian history.