Description: 
New option parts for ARC R8.4/R8.0E series car. The new design rear upper arm utilizes one linkage to replace the original A-type arm. The inner link of the arm is now higher which provide more rear traction, with four different mounting position for tuning setup. The I-type arm has been tested to free the rear end in corner apex. 
Recommended to use I-type arms in combination with the H-type rear arm R809019. it will increasing stability enter and exit corner.