Adds security to  "narrow/wide" 1x10/11 and XX1/X01 drivetrains
Most models accommodate 26-38t chainrings
Tracked and grooved upper guide / backplate interface increases stiffness and eases installation
New co-molded "TR" upper guide with softer durometer interior for silent guidance
Available D-Mount (FD), Carbon D-Mount,  E-Mount/S3 (FD), Seat Tube (for MTB and CX), ISCG-05, ISCG, and BB mounting options
All install and adjustment operations possible with just a single 4mm HEX wrench.
39 (S3) - 74g (Seat tube MTB)
Seat Tube mounted versions use first generation (V1) upper guides
Oval compatible
CX model is only compatible with two-ring, road crank chainlines
BB mounted guides are only compatible with traditional, threaded BB systems