Converse of object

• have: Only if they didn't have any synchromesh, ie had a racing box.

Modifies a noun

• gearbox: Drive to the four speed synchromesh gearbox was through a single dry plate Borg & Beck clutch chain linked to the pedal.

• cog: Thank you for your recommendation regarding the recasting of the secondary synchromesh cog.

• design: Suitable for older gearboxes of either straight cut, synchromesh, epicyclic design and for overdrives such as Lacock.