Marek Konwa- my tester is riding approx 4-5h a day on 2-3 bikes. So that bike with xx1 is used approx half that time in all conditions (dry, mud, rain etc). That bike is used on all the races as well. That’s why i pointed out it is a PRO rider as he won silver on XC World Cup in 2011.
I also pointed that my other “regular guy” testers use it more “normal” with marathons from time to time and they still are really happy after 4.5 months.
So it is very individual thing when you will wear the rings to the point it will start dropping the chain. As few said with their riding it may take 2 years:) Someone else will wear the ring within 6 months – it’s individual. Good indication is how often you have to change your cassette and if you change your chain often (ie, ride with 3 chains, and on each only 200 miles- rotation) or just use one for the season and kill whole drivetrain.
For guys like us (working daily) do lunch time rides and go out on weekends it will take a year at least i guess with a good tooth profile and hard material of the chainring. You will have to change your chain anyway eventually and then buy new chainring like everyone does.
But some of us will use it a lot more and in a lot worse conditions. And i was referring to those to point out that it is possible to wear it out.
Also please note that even when you decide to run a guide, such chainring still keeps the chain “100” times better then regular one, helping you keep things tight. (that 100 is made up as you cant really measure it but give an idea)
hope that clarifies more.