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Looking to get a little extra distance so that your derailleur clears your 40 or 42 tooth cog? Look no further. - M4 x 24mm screw for that extra little push

Roadlink Rear Derailleur Part - The RoadLink is optimized for use with ten or eleven-speed 11-36t and 11-40t cassettes - 11-42 or 10-42 setups are not supported - Works with all 10-11 speed Shimano and SRAM Road Derailleurs - Best used with Single or Double Setups - see manufacturer's site for more details

Goatlinks are designed to optimize the derailleur's position relative to your cassette. Offered in two versions - a 10-speed and 11-speed, each is intended to improve the shifting of your 1x drivetrain.

The RoadLink DM (Direct Mount) is the RoadLink designed to fit Shimano's current generation R8000 Ultegra and R9100 Dura-Ace rear derailleurs. It serves as a simple device to offset the position of the rear derailleur, making it possible to run a wide-range mountain bike style cassette. It's an ideal solution for riders looking to convert their road, gravel, cyclocross, or commuter. - Fits Shimano R9100-generation Dura-Ace and R8000-generation Ultegra rear derailleurs - CNC machined from 6061-T6 aluminum with stainless steel bolt - Does not change the derailleurs total chain wrap capacity - Fits standard derailleur hangers only - Best used with Single or Double Setups - see manufacturer's site for more details