Type RR Knuckles for S14,S15Type RR Knuckle Description The Type RR Knuckle is the evolution of Wisterias popular Type R, engineered for drivers who demand maximum front steering angle in competitive drift settings. Developed through extensive testing, this model increases the effective turning angle dramatically while maintaining a natural, confident steering feel. Compared to the Type R, the Type RR features a further reduced Ackermann angle and refined geometry, enabling