Thanks. The presence of the T makes it non-obvious. I did look up "dropper" posts. Hadn't heard of those before. I have a Trek 920 that people covet when I ri

Thanks. The presence of the T makes it non-obvious. I did look up "dropper" posts. Hadn't heard of those before. I have a Trek 920 that people covet when I ride around. I replaced all the drive components a few years ago, since they were original from the early '90s. After it threw a chain and almost caused me serious injury I noticed hey, there's a bunch of teeth missing from these gears! I learned a lot doing the overhaul... especially that you need a bunch of bike-specific tools! I'm pretty sure my old Schwinn Continental is still in my parents' storage space, too...