The BGA-1 adapter offer the possibility to securely attach common bicycle grips with a standard inner diameter of 22 mm/ 0.87" and a length of up to 136 mm. This allows you to choose the material and ergometry of the handle according to your own requirements. A counter screw at the rear end prevents the bicycle handle from accidentally slipping off. The BGA-1 comes with a 3/8-16 screw/two anti-twist pins at the front and 3/8-16 thread with anti-twist pin hole interface at the rear and works very well with ARRI`s Handle Extions System HEX. If you like to have a Bicycle Grip Adapter with ARRI Rosette, please order BGA-2 (K2.0036623) Note: ARRI does not offer bicycle handles. These have to be purchased separately.