A sample from the products for the Rear Suspension include: Arm Relay 1, Oil Seal (3c11), Oil Seal (3c11), Nut. Self-locking.
With six applications this Oil Seal (3c11) is the most specified part.
The most reasonably priced component used on the Mt125-a 2018 Br36 Europe Mt-125 Abs 1tbr3-300e1 Rear Suspension is the Washer, Plain (7g3).