The RAD cage is a replacement outer cage for Shimano Medium cage (GS) clutch rear derailleurs. Specifically designed for perfect shifting of any extended range 11-42T cassettes.
For short (SS) or long cage (SGS) Shimano clutch derailleurs check out the OneUp RADr cage.
The key feature of the OneUp RAD (Radial Appositioned Derailleur) cage is that we’ve moved the upper pulley wheel rearward of the cage pivot to optimize 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.
Material: 7075-T6 Aluminum
Colour: Black, Green
Compatibility: Shimano GS (medium cage) Shadow+ 10spd clutch rear derailleurs
SGS models of the derailleurs above as well as Saint (RD-M820) and Zee (RD-M640) can be converted to use a RAD cage. This requires the purchase of a GS inner plate from one of several online retailers or your local shop. The part numbers are - Y5XC09000 (XTR), Y5XC09100 (XT, SLX) or Y50H09000 (Deore).
NOTE: Any of the three part numbers above are functionally interchangeable. There may however be material or small aesthetic differences.
NOTE: Saint (RD-M820) and Zee (RD-M640) use the XT spring mounting hole on the RAD cage.