4 (37mm) height: 1

Really simple to change up setups with piggyback adjustable valve

Piggyback Shock Parts Tree

Hard Anodized Aluminum Center Gear Set

Castle Link adjustable settings include:

Hot Racing - Aluminum 12mm Multi Width Hex Hub, 30 to 60mm GMA55000 4 (37mm) height: 1Hot Racing multi width hex adapters fit many 1: 10 scale models with 12mm hex drives, and 5mm axles. FEATURES: CNC 6061 t6 aluminum construction widen 15, 20, 25 or 30 mm (per side) black in color YOU WILL RECEIVE: four light weight 15mm hex adapters four 15mm hex adapter four 5mm hex adapter four heavy duty Hot Racing wheel washer four 15mm cap screw four 25mm cap screw four o ring four lock pin four 5x8 shim REQUIREMENTS: 2. 5mm Allen driver