Tillett TBB5 Seat Mounting BracketThe TBB5 side mounted brackets are designed for the B5 car seat in road, race and track applications. They are made from 5 mm thick aluminium and allow the seats to be tipped, raised and lowered. TBB5 brackets are bent at exactly 90 degrees and therefore can point inwards or outwards. They are a less tall version of the TBB5 brackets and are typically used to not gain extra height in an application where at TR1 seat slider is needed. If you intend to