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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 component series is the first dedicated gravel group w/ 10 & 11 speed options - Bikerumor
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Amazon.com : Shimano GRX RD-RX400 GRX 10-Speed Rear derailleur, Shadow+, for Double, Black : Sports & Outdoors
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