440131 Wheel Hexacon Spare for Serpent Mini Spyder Monster truck RTR EP (SER440001)  [SER440131]

Mini Spyder wheel hex overview

The Serpent 440131 wheel hexacon functions as a replacement unit for the Serpent Mini Spyder Monster truck RTR EP (SER440001). It fixes the wheel to the hub and transmits torque during acceleration and braking.

To fit on the compatible Mini Spyder chassis, remove the wheel, examine the existing hex for deformation or play, slide the 440131 onto the axle seating, and secure with the original retention hardware. Use the vehicle's recommended torque and confirm concentric seating to avoid runout issues.

As part of routine maintenance, the wheel hex is a key contributor to drivetrain stability; worn hexes can introduce wheel play and uneven traction. Periodic inspection and replacement when wear is visible help protect adjacent components such as bearings and wheel nuts.