Review: Shimano Dura-Ace 9000 Mechanical Groupset » Dura-Ace 9000 Rear Derailleur

Dura-Ace 9000 Rear Derailleur

11-speed opens the door for cassette ratios that can provide crit and climbing gears in the same cluster, like the 11-28. The 11-25 cassette pictured showcased.

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