RUBBER BUMPER FLEX X4The MonacoRC Rubber Bumper Flex for Xray X4 is a specially made bumper as defined by the name with a thermoplastic material that makes it highly resilient to frontal impacts of your model. But that Is not all, the MonacoRC Rubber Bumper Flex thanks to the study of the right measure relating to the hexagonal texture of its design increases the steering of your model implemented by the slowdown of the air flow under the model. The design of the MonacoRC