I was just about to submit a 1:15.04 that was a seemingly perfect run, but tyll found a new route by accident that was a bit over a second faster. Now the run has broken into the 1:13s and will most likely never go lower, and I don't know if this run will ever be beaten. It's not completely perfect like the aforementioned 1:15.04 at the time since there are microscopic improvements that could be made with the boosts, but this is still a very solid run, and I don't know who else will grind for hours like I did to get this time.

For future reference, the custom parts I used were the Tech Suspension, Speed Wheels, and Boost Frame.