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

Verified Owner
Thursday, May 12 2022 (about a year ago)
Microshift R539 Front Derailleur (3 x 9 Speed) (Braze-On)
Had a great exchange with a technical guy via the Chat on the performance bicycle website. My Trek 2000 Alpha Series road bike front derailleur (3x9) - Shimano Tiagra is officially discontinued and they were able to match up the Microshift R539 as a direct replacement. My Shimano Tiagra is not a braze on fitting, but the Microshift was able to be bolted to the existing derailleur mount/ring - just had to take the old derailleur off - per the technical person's recommendations. Sure enough the part arrived in good time and I was able to easily mount it on my bike and it worked with just a few minutes of tuning the tension on the shifter. Thanks very much. I'm glad I enquired via the Chat - feel like I got some expert advice.