Originally Posted by
dsaul
Those are not bolt holes. If you put bolts in them, they will get caught on the chain. If you don't think so, put a bolt in one of the holes, put the chain in the middle chainring and turn the crank.
Yup, you’re absolutely right! I did as you said, and there is very little clearance for a bolt without impacting the chain, although a countersunk screw may work.
Originally Posted by
wesmamyke
They are screw holes, for counter sunk phillips screws. They install from the back of the ring and thread into the OEM style plastic pant guard. Definitely not a bash guard though.
Huzzah! Thanks for the link my friend. Gonna try this out.