Ratio - 1x12 Wide Upgrade Kit - Forward Exit

This upgrade kit allows you to pair 11 speed mechanical SRAM shifters with a 12 speed SRAM Eagle* derailleur and cassette. This is the neatest solution on the market to gaining all the performance advantages of a wide-range 1×12 drivetrain on a gravel, road or touring bike without the expense of electronic shifting.

You can fit this kit if your chain stay/seat stay cable stop is over 70 mm from the dropout. If it is under 70 mm from the dropout you’ll need the 1×12 Upgrade Kit – Rear Cable Exit. For more information on kit compatibility, check our compatibility guide.

Detailed insyallation videos can be found on the Ratio Web Site

A great review can be found on BikePacking.Com

As cyclists, we design the products we want on our bikes. The Ratio 12-Speed Upgrade Kit allows you to operate a SRAM Eagle* derailleur with your existing SRAM 11-speed 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:

1. Ratio 12-speed ratchet, with shift spacing specially designed for SRAM Eagle* cassettes
2. Ratio cable fin, replacing the existing cable fin on a SRAM Eagle* derailleur
3. Ratio cable adjuster, providing indexing ability on a mountain bike derailleur
4. Spare cable fin circlip
5. M2.5 screw for shifter ratchet replacement
6. Ratio chainstay sticker

To use this kit you will need:

1. SRAM 11-speed shifters from the Red*, Force*, Rival* or Apex* groups or the 10-speed S-700* shifters.
2. A SRAM Eagle* derailleur from the XX1*, X01* or GX* groups. The kit is NOT COMPATIBLE with SX* and NX* derailleurs as the cable fins on these derailleurs are riveted in place.
3. A SRAM Eagle* 12 speed cassette. We can’t confirm that aftermarket cassettes will perform properly with your drivetrain.
4. A 12 speed chain for SRAM Eagle* drivetrains.
5. A 1×12 speed compatible chainring.