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Cable Fin


Use the Ratio Cable Fin to match an X-Actuation™ SRAM derailleur to Exact Actuation™ SRAM shifters. A barrel adjuster provides on-the-fly indexing ability for mountain bike derailleurs.

For more information on compatibility, check our guide.

The fin is not compatible with derailleurs where the original fin is fitted with a rivet. This includes Eagle™ SX™ and NX™ derailleurs.

SKU: 0003 Category:

Use a Ratio Cable Fin to convert a SRAM X-Actuation™ 1x mountain bike derailleur to Exact Actuation™. This allows you to pair the derailleur with your SRAM road shifters.

This is ideal if you’re building a wide-range one by 10 or 11 speed drivetrain and you need the sprocket size capacity of a mountain bike derailleur with road shifters.

Included you will find:

  1. Ratio Cable Fin
  2. Spare Cable Fin circlip
  3. Ratio cable adjuster, providing indexing ability on a mountain bike derailleur
  4. Ratio chainstay sticker

To fit your cable fin to an Eagle™ derailleur, see the following video*:


*Please note that modifying these components may void the original SRAM warranty. Ratio Technology Limited is in no way linked to SRAM LLC

Weight 95 g
Dimensions 17.5 × 11.2 × 2.2 cm

To reduce waste we will send orders of over 10 units as bagged kits with one set of instructions rather than individual kit boxes. You can find a PDF of the instructions on our website here . If you have ordered less than 10 kits but would also like to reduce the packaging of your bulk order or have any questions please email us at Equally if you would like the full packaging for orders of 10+ kits drop us a line too.

Large orders

If you wish to order more than 50 kits please contact us directly via

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