How do I tighten FSA chainring bolts?

Triathlon Forum
1

I removed my chainrings for cleaning, now when I reinstall there seems to be now way to hold the “nut” stationary when torquing the bolt?
Shimano chainring nuts had a slot in them and a special tool that would hold them while the bolt was tightened from the other side.
What am I missing here?

Thanks!

2

uses a hex/allen on the rear “bolt” size as well (not slotted).

3

Yeah, you’ll need 2 different allen wrenches (2 wrenches, different sizes too, I think…) 1 for the front, 1 for the back. Presumably the reverse of the way you loosened them, although sometimes if they’re crusted/rusted into their little counterbores you can get away with just “loosening 1 side” because the crust/rust will take the place of the wrench you need on the frame-side of the chainrings and hold the far bolt stationary while you tighten the one on the outer side.

4

Thanks, I didn’t look inside the nut, I’ll check it again.
Cheers.

5

uses a hex/allen on the rear “bolt” size as well (not slotted).
Thanks!

6

Way better system than the shimano ones.
Make sure to set up the rings correctly.