Mine is set up with 13/50 I like it for tight stuff. Won't win any high speed race though. Just a thought that setup I thing not good on rear wheel bearing sprocket side so check replace bearing as needed. I'm Replacing mine. I know this doesn't need to be said but any play in that bearing replace now!!!
I also run 13/50.
Makes 1st and second more usable, especially when wet. Cruise easily at 110kph. Just need more clutch work when in second on gnarlier terrain. Thinking of switching to a 51 rear.
Just changed to 14/52 from 13/52. Much better as 1st can be used and I dont have to constantly change gears. Mostly tight gnarly enduro and sometimes mudtracks or gravelroads.