Depending on the variant selected, these clamps/adapters allow you to mount your OneUp Components Dropper Remote (V2 or V3) to either their Shimano / SRAM brake clamps, flat bars (22.2 Clamp), or drop bars (31.8 clamp). The 31.8 Clamp and the 22.2 Clamp are stand-alone clamps allowing the remote to mount/attach to your bars without attaching to a pre-existing clamp or brake mount. The SRAM MMX, Shimano I-Spec EV, and the I-SPEC-II Adapters are not clamps. These adapters allow the remote body to mount to the pre-existing clamp or brake mount on the bike. SRAM Matchmaker X - SRAM MMX clamps Shimano - I-SPEC-EV - 12 speed XTR M9100, XT M8100 and SLX M7100 Shimano I-SPEC-II - 11 speed XTR M9000, XT M8000, SLX M7000 only Includes: 31.8 Drop Bar Clamp - 31.8mm Clamp & Bolt 22.2 Flat Bar Clamp - 22mm Clamp & Bolt SRAM MMX Adaptor - Adaptor, Adaptor Bolt & Clamp Insert, Remote Mounting Bolt Shimano I-SPEC EV Adaptor - Adaptor, Adaptor Bolt & Clamp Insert, Remote Mounting Bolt Shimano I-SPEC-II Adaptor - Adaptor, Adaptor Bolt & Clamp Insert, Remote Mounting Bolt Note: This product does not contain a remote body. This product is not a universal product, it will only work to attach/mount a OneUp Components Dropper Remote body (V2 or V3). The 31.8 Adapter is for use with drop bars only.