Aluminum Servo Holders & Graphite Bridge reinforces the front part of the car. Direct replacement for standard composite servo holders. Fits all XB2, XT2 and SCX. • Stiffer servo holder reduces chassis tweak • Reinforces the front part of the car • More reliable servo mounting • Direct replacement for composite parts • XB2, XT2, SCX #326201 Aluminum Servo Holders & Graphite Bridge