This site (the main site, not the meta; ok, also the meta) has a weird/silly logo icon:
And it looks even less intelligible as a favicon. I always forget what the tabs with this icon mean. In this question:
Nobody seems to provide a straight answer of why we have this logo.
It also doesn't make sense to put the StackExchange nitials on the logo - no other SE site does that AFAICT. Same goes for the heart: Other SE sites are about people who love Macs, or Chemistry, or Cooking or what-not - nothing special about bicycles.SX .
So please change it. It shouldn't be difficult to use some kind of bicycle figure, or a bicycle wheel (I think - I'm not a graphics designer).