Bert Transmission Rear Teo Bracket Kit (None Adjustable) CTD-050 - For smart tube installation on northeast modifieds such as Teo and Bicknell these new birdcages are truly the hot set-up. Located by special keys which fit into keyways in the bracket, birdcage timing is fast and repeatable. The keys act as a fuse to shear on hard impact usually avoiding more serious damage to the tubes and suspension. (Can be used for Left or Right)