Other

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

Gnarwolf Chainguide

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.

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