This type of plastic abs ring is used for bicycle front derailleur,which convert 31.8mm to 34.9mm 

Made in Taiwan 

Suitable for majority of front derailleur

Dcbikes Product Features :

Material: Plastic

Type: Front derailleur

Color: Black

Size: One Size

Diameter: 31.8mm(1.25in)

Package Includes :

1 X New 31.8mm to 34.9mm Bicycle Front Derailleur Shim Plastic Adapter Conversion

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