Microshift R539 Front Derailleur (3 x 9 Speed) (Braze-On) (Bottom Pull) (Shimano Compatible)

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Full metal construction provides stiffness and durability in this Shimano 9-speed road compatible front derailleur.


  • Full aluminum construction
  • Braze-on
  • Compatible with 9-speed Shimano road drivetrains
  • Designed for use with 52/42/30T chainrings

Speed: 3 x 9 Speed
Shifter Compatibility: Shimano Road
Shift Mechanism: Cable Actuated
Front Derailleur Style: Down Swing (High Clamp/Traditional)
Cable Pull: Bottom Pull
Max Chainring: 52T
Derailleur Capacity: 22T
Chainline: -
Chainstay Angle: -
Color: Silver
Weight: 101g

This product was added to our catalog on May 1, 2019

David Eskins
Verified Owner
Wednesday, May 10 2023 (about a year ago)
Microshift R539 Front Derailleur (3 x 9 Speed) (Braze-On)
I bought the derailleur for the 52/42/30 triple w/ 9 speed on a Giant OCR2 road bike. The derailleur’s spring enclosure interferes with the cable routing so it is impossible to adjust the derailleur. I tried several ways to alter the cable’s routing but to no avail. I’ve submitted a technical question to Nashbar to see if they can offer a solution. If they are able to resolve the issue, I will revise my review but as of this moment, I am 100% dissatisfied with this product. It does not work with this frames geometry.