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Amazon.com : SHIMANO GRX ST -RX600 STI Shifter & Disc Brake Caliper Black, Left/Front : Sports & Outdoors
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Shimano GRX component series is the first dedicated gravel group w/ 10 & 11 speed options - Bikerumor
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shimano GRX RX600 RX810 1x11 Speed RX810 Groupset Road Bike Groupset 170/172.5 30/32/34/40/42T Bicycle Group Set 1*11 speed|Bicycle Derailleur| - AliExpress
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First Look: Shimano GRX RX600 1x 11speed gravel groupset, plus prices and how much do the components weigh? | off-road.cc
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Shimano Grx Rx600 2x11 Speed Rx600 Groupset Road Bike Groupset 170mm 46-30t Bicycle Group Set 2*11 Speed - Bicycle Derailleur - AliExpress
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