The hitcase handle bar mount motor atv provides you with a sturdy yet flexible platform for shooting action videos from your mountain bike or handlebars the motor mount attaches to your hitcase not included and fits onto tubes from 050 to 125 127mm to 3175mm in diameter with a metal ball and socket and u bolt clamp the motor was designed for quick mounting and angle adjustments on a handlebar or roll cage with the hitcases patent pending railslide system with a wide degree ang