The Rear Fork - Chain Case is made up of components including this Swingarm As*g109* (jdm) which is the most expensive.
Parts such as the Rear Fork - Chain Case: Collar,muffler Se, Cap,member Side, Chain,drive Rk420, Washer,8mm are included in the C50lm Little Cub 1999 (x) Japan Rear Fork - Chain Case parts fiche.
The component with the lowest price in the REAR FORK - CHAIN CASE schematic is the Bolt-washer,6x10.