Answer: skateboard

AnswerCrossword Clue
SKATEBOARDIt's mounted at the X Games
SKATEBOARDConveyance invented in "Back to the Future"
SKATEBOARDKid's conveyance
SKATEBOARDRecreational conveyance
SKATEBOARDParticipate in the X Games, perhaps
SKATEBOARDSidewalk scooter.
SKATEBOARDChild's device on wheels
SKATEBOARDKid's wheels
SKATEBOARDTeen's transportation, perhaps
SKATEBOARDRage created in "Back to the Future"
SKATEBOARDConveyance in "Back to the Future"
SKATEBOARDMod transport
skateboarda narrow board made of wood, fibreglass, etc, mounted on small wheels / to ride or perform stunts on a skateboard
skateboardA short narrow board with two small wheels fixed to the bottom of either end, on which (as a recreation or sport) a person can ride in a standing or crouching position, propelling themselves by occasionally pushing one foot against the ground