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The Shimano GRX ST-RX610 dual control lever delivers light and responsive shifting for mixed-terrain riding (Note: BR1057 is a left non-shift variation for 1x set ups)
Non-slip rubber zipper pull for easy one-hand operation
Fits 9 10 and 11-speed chains
model Standard material steel ID 35mm/1
FOX Mounting Hardware - 9 Piece AL 6mm x 27.94/1.100 ModelNumber=K3521 The Shimano GRX ST-RX610 dualFOX Mounting Hardware 9 Piece AL 6mm x 27. 94 1. 100. 9 Piece Alloy Mounting Hardware Kit for Fox rear shocks. TECH SPECS Frame Mount Width 27. 94 Bolt Mount Diameter 6
