This was a Critical Mass event, which is why the bicyclists are taking up all of the street as a way to reclaim the streets and protest the lack of safety for riders under usual conditions. It’s not legal, but protests are never useful if they’re fully legal now, are they.
Idiots in cars, idiots on bikes. Hell yeah I’m pro bikes but setting a wheel on incoming lane? Yeaah… no thanks, I’m fine
In the bike party near me, we take over the traffic lane but not the oncoming lane.
Maybe that’s why bike party split off from critical mass