Components Chains SunRace SunRace 12 Speed Hollow Pin Chain Dorado SunRace 12 Speed Hollow Pin Chain. The 12-Speed hollow pin chain is built around strong chromoly steel plates for maximum stability and performance. Its hollow pin design delivers superb plate retention strength and front and rear shifting efficiency. Weighing in at only 250g, youll not have to worry about Unisex 110 Links Dorado
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