As I said in my ride report, I was going to run 15/45 gearing, but after pre-running with 15/49 I decided to stay with that. It gave me more grunt in the woops and there was only a couple of times during the race that I was looking for another gear. Standard gearing for my bike is 13/49. So I went up 2 teeth on the front for Finke.
It’s hard to say what gearing you need as mine’s an MX and yours an enduro and I don’t know your riding ability. I think I was good for about 150km/hr with 15/49.
Finke is not as fast as it used to be and I would say that being able to do 140km/hr should be ok.
The best thing I can suggest is to take a 14t and 15t with you and do some pre-running when you get out there (i had as much fun pre-running as I did in the actual race) to determine whats best suited to you. Don’t go too small on the back if you can help it as you will then run the chain too close to your swing arm and wear out your chain guide.
Gearing is resonably inportant for Finke. If you go too high, the bike won’t pull through the woops as well, which can wear you out. If you go too low it will be screaming and you will be overtaken in the faster sections.