The shift point`s can be adjusted on the 2spd tran`s...depend`s on the size of the track..and where you want 2nd gear to hit..! I adjust mine on pavement and measure off how many FT. to determine the correct shift point for a certain track...As for my opinon I like the 2spd..My Violator will do 50+...and it`s cool to hear it shift. Good luck