Gear Wire 20T 1/2 X 1/8 Inch

Esjot sprocket 1/2 x 1/8 Thread 20 Tooth - With thread - Number of teeth: 20 - Colour: silver - Chain size: 1/2" x 1/8" - Inner diameter: 34 mm - Material: steel - Weight: 100 grams - Thickness: 3 mm - Type of bike: city bikes