The RTR treatment adds custom RTR branding

These multi-rate springs are soft at the beginning to soak up the small bumps

One steel main center drive shafts

These Falken Azenis RT615 T-Drift Tires are a special hard plastic tire with the fully licensed tread pattern from the popular Falken Azenis RT615 tire

and modifying Mini 4WD machines

Hot Racing - S2 Spring Steel Solid Front Axle w/ Gear, for Traxxas TRX-4 Tires Wheels Inserts 1/10 Buggy The RTR treatment adds customHot Racing's Front CV axle shafts with gear for the TRX4 Front Portal axle. Features: CNC Hardened S2 steel construction Axle CNC Cut # 45 Hardened Steel gear Replaces worn or damaged axle shafts and gear