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Your complete guide to Shimano mountain bike drivetrains - Tourney, Altus, Acera, Alivio, Deore, SLX, XT, XTR 12 speed | off-road.cc
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SHIMANO Altus SL M315 7/8R and RD M310 3x7/3x8S 21/24S Shifter Set RAPIDFIRE PLUS with Optical Gear Display MTB 7/8S Groupset| | - AliExpress
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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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