Cast coupling head kit to suit both Knott and Avonride coupings with either a 45mm or a 50mm tube. A reducer is included in the kit from 50mm to 45mm.

Comes with a lock and 2 keys which allows the trailer to be locked while hitched or unhitched.

2x M12 replacement bolts are also in the kit.

Cast lockable head to suit Knott / Avonride couplings