The Razor's Edge trail is one of the crown jewels of K Country, and is one of the most technical trails in the area. The singletrack dumps out at the Transcanada Highway (trailhead location given) but it's not advisable to climb this trail.
A popular loop is to climb the Quaite Valley trail, turn left and continue climbing the Prairie View Trail, and then take a left off of the Prairie View Trail onto Razors Edge and descend back to the highway.