

Hi all!
I’m planning on replacing the middle chainring on this bike, so just researching how to do the swap. I know I need a tool to remove the crank, and I know this is a hollowtech crank, but I don’t think it’s Hollowtech 2?
The bike is at my parents house so I’m trying to source the parts in advance, and these are the only pictures I have.
I’ve tried YouTube and this subreddit and google and there are so many different types of tools and bolts, but I’m hoping someone can take one look at this and just know what’s needed – any help really appreciated.
Thanks!!
by lcjones97