What should I do to prepare for RASP (Formerly RIP)? Does BCT prepare you?

As a RIP, (that's what it was called in my day) grad here is what I would do. First, don't get hurt or over train. No matter what you will need to recover. Second, extend your run to cover 25 miles a week, work on pace and distance. You will do a long run at RASP. Continue to bike, that's good for the knees and not nearly as hard on the body. Third, ruck or hike. Not fast but with 50 plus pounds on your back. And finally remember that like a most things, if you want it bad enough, nothing will stop you. It's tough and it's going to suck everyday, but trust me it's well worth it in the long run. And will only prep you more for Ranger school. Good luck

RLTW

Thanks everyone in this forum for the advice. What is your shipout date? I am leaving for ft Benning august 11th and plan to go airborn and try RASP aswell. I am running about 5-10 miles almost every day, lifting weights, and doing atleast 10 Miles rucks increasing weight. Best of luck to you hopefully see you there!

Run and ruck. A lot. Transition to running slowly so you don't get a stress fracture. Your runs should work up to one day of speed, one day of 5-7 mile run, and one day of a long run or ruck. It's been a few years since I was there, but our PT was Monday 5 mile run, Wednesday, 7-8 mile run through the hills, Friday ruck 12 miles in 3 hours with at least 55 lbs. Tuesday and Thursday was a 3 mile sprint with PT afterward.
You will have to run 5 miles in 40 minutes, but you really need to be able to do it closer to 35. You'll want to do extra PT in Basic and Airborne, specifically running. Guys in Regiment are gazelles with quads like tree trunks. I used to get made fun of because I couldn't break 13:00 in my 2 mile run.