Synchronizer Rings of brass/bronze
The synchronizer ring is a very important part in the manual transmission. As there is a shift in the speed, the different gear meshes up. This causes strong impact and may not make the meshing correct. The synchronizer ring is the absorber and delays the time of meshing up thus making smooth Synchronization between the Gears. That is why it is named Synchro. It is also known as baulk ring or block ring.