With zinc plating and black coating at the largest and smallest sprocket, the Shimano MF-TZ510-7 cogset features a better corrosion resistance than its predecessor MF-TZ500. The multiple 7-speed freewheel is available as 14-28 teeth or 14-34 teeth MegaRange version. Compatible to Hyperglide (HG) and Uniglide (UG) chains.
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