Destroyed an IRO chainring in 3 months, some of the teeth are about to break off. I don't know if this is a normal rate for wrecking a chainring so fast... So I found another chainring (42T, the IRO was 46T) because I was curious about spinning a little bit more, and I immediately noticed a difference- I feel like I can control the bike so much more and it's easier to accelerate, but I feel so much slower overall. It's like Super Mariokart and changing from Bowser to Yoshi, with just 4T difference.