The Transmission assembly is constructed from several parts from which the Gear, 4th Wheel is the most expensive.
Some items from this specific schematic: Washer Plate 132172160000, Oil Seal (20x38x5-517), Washer (537), Bearing.
The Circlip is the most widely applied product in the TZR125 1988 3FN ITALY 283FN-354S2 TRANSMISSION ( four times ).