Sunrace RDMX60 Rear Derailleur (Black/Silver) (11/12 Speed) (Medium Cage)

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Sunrace RDMX60 Rear Derailleur (Black/Silver) (11/12 Speed) (Medium Cage)
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Price: $104.99


  • Medium Cage

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Sunrace RDMX60 11/12 Speed Rear Derailleur.


  • Alloy cage with adjustable chain stabilizer
  • Forged alloy links
  • 14t lower pulley and 12t upper pulley
  • Max rear sprocket is 50T with 1X setup; 42T with 2X
  • 10/11/12 speed compatible

Speed: 10 Speed, 11 Speed, 12 Speed
Shifter Compatibility: -
Shift Mechanism: Cable Actuated
Max. Tooth: 50T (For 1x), 42T (For 2x)
Min. Tooth: 10T
Chain Wrap Capacity: 46T
Cage Material: -
Chain Retention: Stabilizer
Color: Black
Weight: 283g

This product was added to our catalog on April 4, 2019

Verified Owner
Saturday, Jun 8 2019 (about 3 years ago)
Sunrace RDMX60 Rear Derailleur (Black/Silver) (11/12 Speed) (Medium Cage)
Aaaabsolutley rubish.
B-screw tension plate cracked completely (I believe on the first climb) and later bent/twisted on the descent. Horrible design. Don't buy this product, or at least not the mx version. Buy the top-end ms, or an mz. Actually, just spend the extra 30$ and get a gx derraileur. If you're planning to use this with a hyper-high range 10 of 11 speed cassette, I seriously don't recommend it. Wasn't given a refund, sunrace customer service sucks. "David" from Napa, CA sunrace corporate, told me he'll ship it np, will be expedited from Taiwan. Two days later tells me the entire factory is on vacation for a Taiwanese holiday.