The hoverbike's hitbox is defined in the .vehicle JSON. There's one for occupied and one for unoccupied, but they're bother arrays in under the "collisionPoly" key. [/CODE] "movementSettings" : { "collisionPoly" : [[-4.0, 0.5], [-2.0, -1.5], [2.0, -1.5], [4.0, 0.5]], "mass" : 4, "airFriction" : 2, "ignorePlatformCollision" : true, "gravityEnabled" : true, "collisionEnabled" : true }, "occupiedMovementSettings" : { "collisionPoly" : [[-4.0, 0.5], [-2.0, -1.5], [2.0, -1.5], [4.0, 0.5]], "mass" : 4, "gravityEnabled" : true, "collisionEnabled" : true } [/CODE] This all goes to the motion controller, so you can adjust any of those properties here as well.