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Campagnolo Athena 11x3 Rear Derailleur - Scott's Cycle and Sports | Kennewick & Hermiston Bike Shops
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Amazon.com : SRAM0 GX Bicycle Rear Derailleur with 2 x 11 Speed Medium Cage, Black (00.7518.082.001) : Sports & Outdoors
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mountain bike - How can you identify if a Shimano rear derailleur is medium or long cage? - Bicycles Stack Exchange
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