he RDRP XB2 Brass RF Suspension Mount is a direct replacement for the kit's lightweight part. It adds valuable weight in front of the rear axle helping to reduce the pendulum effect rear mounted weights can create and is especially beneficial when running in bumpy or low-traction conditions. Machined from black-coated brass and sporting gold chamfered edges, this suspension mount weighs in at 12g and shifts the weight bias further back for improved traction.