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  • Silent and secure rear shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slap and drops
  • Smooth and reliable shifting on mixed surfaces
  • ON/OFF stabilizer switch matches terrain

                              GRX 12 Speed Rear Derailleur

                              • MODEL NO _ RD-M8100-SGS
                                SERIES _ DEORE XT M8100 Series
                                Color _ Series color
                                Average weight _ 284
                                Remarks _ w/Bumper on pully cage
                                Rear speeds _ 12
                                Compatible chain _ HG 12-speed
                                Top-normal spring type|SHIMANO SHADOW RD+ _ ✔
                                Mount|Direct attachment (conventional) _ ✔
                                Max. front difference _ 0T
                                Total capacity _ 41T
                                Low sprocket|Max. _ 51T
                                Low sprocket|Min. _ 51T
                                Top sprocket|Max. _ 10T
                                Top sprocket|Min. _ 10T
                                Fluoric coated link bushings _ 7
                                Pulley|Guide pulley bearing _ Sealed Bearing
                                Pulley|Tension pulley bearing _ Sealed bearing
                                Pulley|Teeth _ 13T
                                Pulley|Sunken type pulley screw _ ✔
                                B-axle|Hollow axle _ ✔

                              • -If you are not 100% satisfied with your purchase, you can return the product and we'll refund the full cost of the item minus shipping costs or exchange the product for another one, be it similar or not.

                                -You can return a product for up to 30 days from the date you purchased it.

                                -Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.

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