Introduction: Team Associated engineers sought to lower the CG, reduce weight, and improve handling on un-groomed outdoor tracks. As a result, the new RC8B4.1 RWB chassis design has a stiffer tapered profile for predictable high-speed handling, allowing for a softer overall shock package. The suspension is overhauled with new front and rear low-CG shock towers and shorter shocks, along with new 3-hole rear suspension arms that allow for softer shocks and springs while still maintaining support in the fast turns. The new wide base rear hubs come in three fixed axle heights and use 3mm carbon fiber hub towers to allow several different geometry options. Lastly, the buggy comes with 92mm universal joints, 44/13 bevel gears, and a 47T spur gear for the most grip and smoothest power delivery on un-groomed outdoor tracks. Features: New RC8B4.1 RWB chassis and side guards with tapered chassis design to increase stiffness and predictability New low CG and lightweight aluminum front and rear shock towers New shorter 16mm front and rear shock bodies for lower CG and lighter weight New 6-hole 1.4mm front and 1.5mm taper rear machined shock pistons included with emulsion shock cap seals New 3-hole rear suspension arms with updated rear anti-roll bar geometry for both smooth and bumpy tracks New durable rear hub design with wide footprint base, and tuneable 3mm carbon fiber hub towers New molded RC8B4