Type RR+ Knuckles for S14,S15Type RR+ Knuckle Description The Type RR+ Knuckle is Wisterias hybrid designblending the high angle capabilities of the Type RR with the street friendly traits of the Type III. It achieves a strong front tire angle while maintaining smooth rolling characteristics, low ride height compatibility, and clearance under normal fenders, making it ideal for street style drift cars and responsive track machines. This model is especially well suited for builds