MGP17 Yzr m1 screamer engine

[tittorial]

this mod very fast on the fast track, but on the bend, and at the start of the race rear tiers is spin and slip like drifting, the way fix this problems is pressing the manual gear on the joystick, in my opinion less practical.
Everyone please help me to complete this mod "on corner slip rear tiers" :

my mod can be found on description in this video.