I did a guided trip… most people were on 140mm bikes. My wife & I were both on Turner 5spots with zoke 55s and Fox 36s. They were perfect.. but I am a Turner fan
Ash had a couple of Nukeproof Megas with 170 Lyriks and 1×10. In fact there were quite a few 1x10s. I rode one of Ash’s Megas up a few of the stages no problem. If you’re strong enough to compete then you’d do just fine on 1×10 (I on the other hand would need to build up some strength).
My take on the TP – First of all you have to make sure that you are fit enough for the 7 longs days of intense riding both up and down. Sure you may be fast down hill but that won’t mean anything if you nothing left in the tanks on day 4.
Once you’ve got your fitness up there then make sure your tech skills are up for it.