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Amazon.com : Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage : Rear Bike Derailleurs : Sports & Outdoors
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The shorter 8-speed Shimano Altus pulley cage is designed to keep the rear derailleur away from the ground. © Cyclocross Magazine - Cyclocross Magazine - Cyclocross and Gravel News, Races, Bikes, Media
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Amazon.com : Revere Shimano Altus Mountain Bike 7/8-speed Rear Derailleur - Direct Mount - RDM310 : Sports & Outdoors
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Amazon.com : Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage : Rear Bike Derailleurs : Sports & Outdoors
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