Sometimes I use music -- an uptempo play list. One song easy, next song hard effort, next song half easy, half moderate effort, etc. Or shift to a hard gear for the chorus and easy for the verses. Stuff like that.
I would think someone somwhere has made podcasts for indoor cycling intervals...
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles