Ultegra CS-R8000

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5 largest cogs on alloy and composite spiders Light weight and high performance Aluminum lockring Nickel plated finish The 11-34 cassette (120615-07) is compatible with 10 and 11 s peed freehub bodies (use 1.85mm spacer for 11 speed road) Other sizes are compatible only with 11 speed road hubs Specifications Cassette Spider Mat.: Aluminum Cassette Technology: Hyperglide EV Cassette Weight: 232g Cog Details: 11-12-13-14-15-16-17-19-21-23-25 Cog Material: Steel Finish: Chrome Range: 11-25T Speed: 11 Special order - ships in 5-10 days from our distributor. Show more