Looking for a bit of advice as I have just noticed that the large chainring (36/22) has 2 teeth that have sheared off. I have only had the bike 4 months! So I need to replace the large chainring, what are my options. Can I just pick up any chain ring to replace it? I don't know what the BCD is and believe me I have tried to find this info. Can anybody recommend any hard wearing chainrings for AM/DH use?
Edit - so I have just measured and the crank is 4 bolt and a BCD of 104 and 73 I think. I measured the bolts adjacent to each other and then the top bolt to the right bolt. I think I did this right?