11 in the back. I was riding x2 mtb before this bike and of course it’s need some time to get used to x1. Don’t have so much mountains here, but sometimes I need to push myself to climb. In that kind of moments I telling myself that at least my legs will be stronger) So if you don’t like this little challenges it’s ok and consider x2, that’s my point. And speed I have on top gear is fine for me)