Trace’s can be lowered internally, they all leave the factory at 140 I believe.
Pikes are a bit taller than many for a given amount of travel. The Sherpa really handles best with a short A2C 100mm travel fork on. The BB height seems to be the main culprit, awesome frame as it is (my GF has one, I’ve ridden it several times and have been contemplating one for myself) the BB height isn’t that low even with a 100mm fork fitted and once you put a 120mm Pike on (about the same length as a 130mm Revelation) you’re looking at an HT with a 13″ BB height.
To be fair it’s my only criticism of the frame, the BB is slightly lower on it than on the Cotic Solaris for instance (that does have a tall BB), if they knocked 15mm off the BB height I’d buy one tomorrow.
Oh and assuming you’ve made your mind up and are going to do it anyway… Check out the MRP Stage fork. Bit shorter A2C than a Pike, IMO performance is better, and internally adjustable in 10mm increments. Been running one of these for many months now and I definitely prefer it to the Pike it replaced.