RE: Upgrading the Hyper ST RTR
1. The LRP are the Proline LRP Velocity 17mm wheels with 1/2 offset. Then you can choose either the Crimefighter, Hole Shot, or Bowties LRP tires to fit on those rims depending on what your track condition is.
2. I run 7/10/5 and is a good place to start. YOu can always change out from there.
3. I am running 40/45 again a good starting point depending on track conditions.
Good luck.