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SRAM X4 MTB bicycle Groupset Trigger Shifter Lever 8s 8Speed with window Rear derailleur Middle Cage 9s 8s 7s black bike kid
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Sram X4 Rear Derailleur + Trigger Shifter 7s 8s Mtb Bike Bicycle Derailleur - Bicycle Derailleur - AliExpress
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