RE: - Official Kyosho MP777 ST-R Thread -
I suggest a king headz quick change mount, and front chassis brace, if you tend to run on terrain with allot of big jumps(or if you run in the cold).
Some may say ditch the the cast knuckles but ive only worn out one set after more than 20 gallons of runtime.
One thing you have to do with the ST-R is take your time shimming the diffs, many have rushed this(or shimed them like straight cut gears) and have blown ring and pinnion gears.Myself im still on my original gears and am expecting them to last the rest of the season.When they will be replaced by the new chromoly gears when i can get my hands on them.
For setup how is your track?