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The new 12-speed ULTEGRA R8150 rear derailleur delivers the quickest and most precise shifting yet, featuring a single cage length designed to accommodate low sprockets from 28 to 34 teeth for enhanced versatility.
BENEFIT
Our fastest ever rear shifting, 58% faster than RD-R9150
LED status indicator
FEATURE
Battery indicator
Pairing
Adjust mode, etc.
Wider range capacity
Max. low sprocket: 34T
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