This premium upgrade component is meticulously crafted from high-grade, precision-machined A7075-T6 aluminum, designed to replace the stock plastic suspension holder on the rear of Kyosho Ultima SB series vehicles. By significantly enhancing the rigidity and durability of the rear suspension pivot points, it provides more consistent and predictable handling, especially under high stress or aggressive driving conditions. This robust D-block mount is essential for serious racers and enthusiasts looking to optimize their buggy's rear suspension geometry, improve crash resistance, and achieve greater stability and longevity on the track or trail.