I'm not involved with it other than as a lurker but for those who used to look at the USGPRU forums, you probably know that it disappeared a while ago (over a year, if memory serves). Thankfully it looks like it's back up now: https://usgpru.net/
Wow, I just saw this and this is GREAT news, there was so much good info on there, I am SO HAPPY that it is up again!
It looks like whoever is maintaining it has managed to retain the forum history. That place is an irreplaceable gold mine of 2t GP technical information for the do-it-yourselfer. A significant asset to the American roadracing world.
Yep still alive and well. Trying to get her out there this season. Need to update my sig as I got an Aprilia RS50 as well to ride around the neighborhood in.