Double Cone, transmission parts, is precision processing Parts
Double Cone is one of parts composing Synchronizer Ring, which suppresses the generation of noise and prevents from damage by synchronizing the speed of gears in a manual transmission.
Double Cone is one of parts composing Synchronizer Ring, which suppresses the generation of noise and prevents from damage by synchronizing the speed of gears in a manual transmission.

D/Cone

Synchronizer Ring by CYmyutec

Manual Transmission

Dct Transmission