This is an optional part for RD2.0/SD2.0 that combines an aluminum rear H-arm and a brass weight to systematically increase rear traction.
The highly rigid aluminum H-arm can be equipped with separately sold weights to increase the unsprung weight that is directly applied to the rear tires. effectively increasing tire traction. Unlike increasing the weight of the chassis. the load is applied regardless of the pitching action. so the slide is well contained even when entering a corner. and a sense of stability can be maintained. By adding 5g or 10g weights to the base 20g weight. you can control the amount of load applied.

Compatible chassis (optional)
SDR-020 / SDR-020P / SDR-020R / RDR-020 / RDR-020G