B.A.S.E. Upgrade Kit

For set #31081 Modular Skate House. The B.A.S.E. or Big Air Skateboard Engine upgrade kit takes big air to new heights! With a lil’ 900 HP engine upgrade this kit can take you out of this world. 360s and 720s are a thing of the past. With our newest technology you can now pull off 3600s and 7200s with ease. Tony Hawk ain’t got nothing on this! ;) Thanks for looking friends!