• OneUp Components RADr Shimano Rear Derailleur Cage

    • HOT PRODUCT28 people are looking at this item.

        • $52.25 52.25
        • RRP $54.99
        • Save 5%
    • Select Colour
    • See delivery information

      Need next day delivery?

      Order in the next


      and choose Next Day Delivery at the checkout

OneUp Components RADr Shimano Rear Derailleur Cage

This 2nd generation RAD cage is specifically designed for Saint and Zee but works well with all Shimano Shadow+ (clutch) rear derailleurs. Dramatically improves shifting performance on any extended range Shimano 1x10 drivetrain.

The key feature of the OneUp RADr (Radial Appositioned Derailleur) cage is that the upper pulley wheel has been moved rearward of the cage pivot to optimise the derailleur for larger sprockets. Now as the derailleur moves into larger sprockets the top pulley wheel automatically moves away to adjust the chain gap, no longer relying on just B-Screw.

OneUp Components is a small team of passionate mountain bikers, dedicated to bringing genuine value to the MTB market. OneUp was founded by three former Race Face engineers, Chris, John and Sam. Together they have over 22 years of bike industry experience and have developed some of mountain biking's most recognisable and award winning products.


  • Includes replacement front and rear cages
  • Cage length is between GS and SS cages to offer the shortest 42T compatible cage possible
  • Dramatically improves shifting performance for Shimano Shadow+ clutch rear derailleurs
  • Chain Wrap (cassette wear) and Free Chain Length (shift performance) corrected to stock Shimano specification
  • Tuning your derailleur to achieve perfect shifting with an 11-42 is now much easier
  • Requires Stock B-Screw adjustment (no more removing washers or reversing B-Screws)
  • Improves chain wrap and extends cassette life
  • Provides the lowest possible profile to prevent unwanted cage strikes
  • Installs in under 15 minutes

Technical Data:

  • Weight: 34g
  • Material: 7075-T6 Aluminium
  • Compatibility: Shimano Shadow+ 10spd clutch rear derailleurs, Deore (RD-M615), SLX (RD-M675), XT (RD-M786), XTR (RD-M985, RD-M986), Saint (RD-M820), Zee (RD-M640)

Buy OneUp Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
  • Pay by PayPal, Bank Transfer or Card


  • Colour: Green
  • Speed: 10 Speed

Interested in OneUp Components Derailleurs?

Derailleurs Buying Guide

  • We've got everything you need to know in our buying guide.

Also Consider...