weiyingsi chain master connector links 420 90cc 110cc 125cc pit quad dirt bike atv buggy pack of 20 weiyingsi features: 20 x 420 chain joiner master links 90cc 110cc 125cc pit quad dirt bike atv buggy <br>specification: <br>fit chain size: 420 <br>pitch on this link: 1/2 inch (12.7mm) <br>roller diameter: 0.306 inch (7.77mm) <br>inside measurement: 1/4 inch (6.35mm) <br>pin diameter is : 0.156 inch (3.96mm) <br>material: steel <br>color available: as picture shown. <br>package included:20 x 420 master links