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Shimano Ultegra RD-R8000 11spd Rear Derailleur GS Mid Cage - Cassette up to 11-34 [IRDR8000GS] at BikeTiresDirect
RATING: 5.0/5.0 http://www.wolftoothcomponents.com Product Tested: RoadLink rear derailleur hanger extension. Price: $21.95 MSRP
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