Team Associated ASC81638 Rear Suspension Arms Soft

These are the soft compound rear suspension arms for the RC8B4.1 buggy.

The rear arms carry the rear hubs, drive axles, and shock loads, so they absorb the impact of every landing and control how the rear of the car tracks through rough sections. Arm stiffness is a genuine setup variable at the rear: the soft compound allows slightly more flex under load, which typically adds rear traction and takes some harshness out of the car on bumpy or low grip surfaces, while firmer arms hold geometry tighter for high bite conditions.

This set fits the RC8B4.1 and RC8B4.1e, mounting on the standard inner and outer hinge pins in the factory positions, so no modification or additional hardware is required. Fit them as a direct replacement for arms damaged in a crash or worn from repeated hard landings, or as a deliberate tuning change to soften rear response. Rear arms take heavy abuse in 1/8 scale racing, so a spare set is worth carrying to every event.