ATOMICRC's Optional/Upgrade Wide Double A-Arm Front Suspension Set. This Dynamic, Wide Double A-Arm Suspension Upgrade is designed and used by "Experts" and any other driver wanting to experience extreme performance through tuning and less front scrub ratio which means smoother faster and more consistency. Designed and executed by the ultra-sophisticated and leading-edge engineers at AtomicRC. With the signature, and stunning; AtomicRC Gold anodizing...and the fore thought to fit the: MRZ, MRT, and MRZPRO...you can now enjoy the added high performance to these other fine AtomicRC cars! THIS is the Next Level.