A sample from the products for the Rear Swinging Arm (ds100c include: Torque Link,rear, Bolt(8x22), Washer, Cover,swgarm Bush Dust Seal.
The O Ring(d:2,id:24.5) is the cheapest item from this partsfiche.
This REAR SWINGING ARM (DS100C assembly utilises six Washer(s) - the highest specified component.