VISION TRIMAX TT paddle 11-speed SHIFTERs. Bar-end Shifter Trimax TT paddle shifters are FOR 11-speed Shimano shifting systems in addition to Vision drivetrain compatibility. When both value and performance are important, TriMax is your best choice. Compatible with Shimano RD 9000 (11S) RD 7800, RD 6700, RD 5700 UCI Legal Anodized black Alloy