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For 11-speed HG chain Fini plaqué nickel

Ultegra The 5 largest cogs are mounted on 2 aluminum and composite spiders Lightweight and high performance Aluminum locknut Fini plaqué nickel Compatible with 10- and 11-speed cassette bodies (for 11-speed, use a 1.85 mm spacer)  Other sizes are only compatible with 11-speed road hubs

• Lightweight 11-speed road bike cassette with wide gear range• Ideal for enjoying smaller gear ratios ona 1x or 2x drivetrain with a longer or reversed B‑tension screw, or a Lindarets x Wolftooth Goat Link extender• Only compatible with Shimano HG 11-speed road freehub bodies• Five cogs spread over two...