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- Sun Race 19 Teeth Free Wheel for Chain – Chrome, 1/2 x 1/8 Inch
- 1/2 x 1/8 Inch
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Sturmey Archer Single Speed Freewheel – 1/8′ and 3/32′ Sturmey Archer quality freewheels that are designed for singlespeed bikes. Compatible with 1/2 x 1/8′ and 1/2 x 3/32′ chains. Features: Brand: Sturmey Archer Cog Sizes Available: 16t, 17t, 18t, 19t, 20t, 21t and 22t Thread – BSC 1.37 x 24 tpi Chrome finish Color: Silver 1/2′ X 1/8′ or 1/2 x 3/32′ (please select from the drop down) Please note: The image shows the 18t 1/2′ x 1/8′ version with the box.