Originally Posted by stardognine

Thanks much, just wanted to hear it from someone with some experience. 🙂 I've messed with square tapers quite a bit, off & on, but this was my first encounter with Hollowtech II.

I have the proper Park tool, and a 28t ring that "might" fit where the 30t ring is now. Both were cheap, so I took a chance on the chainring. 😉