This shifter is only compatible with Microshift Advent X derailleurs and is not compatible with Shimano or SRAM

2mm diameter

The tool bits are made from high tensile steel for extra durability and have a precision finish for the best fit possible on any hardware

compression (compression) set at the factory

AlpineStars Paragon Plus Elbow Pads - 2XL - Black PLP|Model Year This shifter is only compatibleLightweight, durable, and flexible, the Paragon Plus will keep the you safe from gravel rash and some bigger impacts without being bulky and uncomfortable. Who's it for? Anyone wanting to make sure they don't have to pick bits of gravel out of their elbows. Protection style? Firm, yet flexible guard for great impact protection, but reasonably unrestricted movement. Materials? Elastic, mesh, and rip stop materials strategically placed to give abrasion