The most reasonably priced component used on the Ts125 1971 1972 (r) (j) Usa (e03) Gear Shifting is the E Ring.
Some items from this specific schematic: Plug, Spring, Screw, Pin.
The Roller(4x13.8) is the most widely applied product in the TS125 1971 1972 (R) (J) USA (E03) GEAR SHIFTING ( four times ).