Time to switch gears

I'll be racing in the "Expert" division of the local MTB race series this year. So I decided I better put some gears back on my bike, so I have at least some chance of keeping up.

Here is my bike in 1x9 mode (one chainring, 9 rear sprockets)

Shimano XT 11-34 cassette, and SRAM X-9 Derailleur. I also used an SRAM X-9 shifter.

N-Gear Jump Stop on the inside, Salsa Ring Dinger on the outside to prevent the chain from derailing in bumpy situations.