As cyclists, we design the products we want on our bikes. The Ratio 1×12 Wide Ratchet allows you to run a SRAM Exact Actuation™ derailleur 12 speed with your existing SRAM 11 speed road shifters, gaining an unbeatable 500% or 520% range and 12 evenly spaced gears on your gravel, road or touring bike. For reference, a traditional 50/34 compact chainset with 11-28 cassette provides only 374% range.
In your kit you will find:
- Ratio 12-speed ratchet, with shift spacing specially designed for Eagle™ cassettes
- M2.5 screw for shifter ratchet replacement
- Ratio chainstay sticker
To use this kit you will need SRAM 11-speed shifters from the Red™, Force™, Rival™ or Apex™ groups or the 10-speed S-700 shifters.
To fit your ratchet to SRAM shifters for hydraulic brakes, see the following video*:
To fit your ratchet to SRAM shifters for cable brakes, see the following video*:
NOTE: On some older shifters, the reach adjuster will not spin freely when it bottoms out. Stop turning the reach adjuster screw as soon as you encounter resistance.
*Please note that modifying these components may void the original SRAM warranty. Ratio Technology Limited is in no way linked to SRAM LLC