This front derailleur ring is used for 31.8MM diameter frame to converted into 34.9MM frame. Small size, easy installation. This is a bike front derailleur ring, made of premium plastic material, sturdy and durable. Ultra-light plastic, light weight, high strength

Features:
【34.9MM TO 31.8MM CONVERSION】This front derailleur ring is used for 31.8MM diameter frame to converted into 34.9MM frame. Small size, easy installation.
【LIGHT WEIGHT, HIGH STRENGTH】This is a bike front derailleur ring, made of premium plastic material, sturdy and durable. Ultra-light plastic, light weight, high strength
【WIDE SUIT】This front derailleur conversion is suitable for mountain bike, road bike, and other types of bikes. And provide the good performance for your bike
【GOOD PERFORMANCE】You can use bike front derailleur ring to replace the old one, and provide the good performance for your bike. Great ability to withstand high and low temperatures
【LONG TIME USE】This bike derailleur shim is durable for long time use. 31.8MM diameter frame can be converted into 34.9MM frame, so that you can install a diameter of 34.9MM front dial ring.

Specification:
Material: Plastic
Color: as picture shown
Diameter: 3.7cm/1.5inch

Package List:
2 x Front Derailleur Conversion Shim