Here the all spare parts for XRAY X4
X4 ECS BB DRIVE SHAFT 58MM (2) - 305316
X4 ALU WHEEL HUB - SPRING CLIP - SWISS 7075 T6 (2) - 305356
GRAPHITE BATTERY ADJ. WIDTH PLATE (2) - 306190
X4 ALU SERVO MOUNT - BLACK - 306206
MOUNTING HARDWARE PACKAGE - SET - 309301
PIVOT BALL UNIVERSAL 4.9 MM - HUDY SPRING STEEL (2) - 372651
BALL-BEARING 3x8x4 STEEL SEALED - OIL (2) - 930308