Bike Derailleurs

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  1. Front Derailleur Double Chainset Shimano 105
    €34.00
    VAN RYSEL

    Front Derailleur Double Chainset Shimano 105
  2. 3 to 6 Speed Rear Derailleur
    €13.00
    DECATHLON

    3 to 6 Speed Rear Derailleur
  3. Front Derailleur 2x9 Shimano Sora R3000
    €27.00
    VAN RYSEL

    Front Derailleur 2x9 Shimano Sora R3000

  4. 10-Speed Long Cage Rear Derailleur Cues RD U6000GS
    €60.00
    SHIMANO

    10-Speed Long Cage Rear Derailleur Cues RD U6000GS
  5. Rear Derailleur 6/7-Speed Shimano Tourney RD-FT35-A-SS
    €13.00
    BTWIN

    Rear Derailleur 6/7-Speed Shimano Tourney RD-FT35-A-SS
  6. 8 to 9 Speed Rear Derailleur
    €19.50
    DECATHLON

    8 to 9 Speed Rear Derailleur
  7. Rear Derailleur Microshift
    €27.00
    VAN RYSEL

    Rear Derailleur Microshift
  8. Rear Derailleur Tiagra
    €36.00
    VAN RYSEL

    Rear Derailleur Tiagra
  9. 7/8-Speed Rear Derailleur Acera M3020
    €24.00
    SHIMANO

    7/8-Speed Rear Derailleur Acera M3020
  10. 1x12-Speed Rear Derailleur GX Eagle Lunar
    €135.00
    ROCKRIDER

    1x12-Speed Rear Derailleur GX Eagle Lunar
  11. Derailleur Rear 1x6/7-Speed Shimano Tourney
    €24.00
    SHIMANO

    Derailleur Rear 1x6/7-Speed Shimano Tourney
  12. Rear Derailleur 8-Speed Altus RD-M310-L - Black
    €21.00
    ELOPS

    Rear Derailleur 8-Speed Altus RD-M310-L - Black
  13. 10-Speed Medium Cage Rear Derailleur Deore M6000 Shadow R+
    €60.00
    ROCKRIDER

    10-Speed Medium Cage Rear Derailleur Deore M6000 Shadow R+
  14. 9-Speed Rear Derailleur Altus
    €27.00
    ROCKRIDER

    9-Speed Rear Derailleur Altus
  15. Shimano Ultegra R8000 FD-R8000-F 2-speed front derailleur
    €42.00
    VAN RYSEL

    Shimano Ultegra R8000 FD-R8000-F 2-speed front derailleur
  16. Triple Chainwheel Front Derailleur
    €12.00
    DECATHLON

    Triple Chainwheel Front Derailleur
  17. SHIMANO 105 RD-R7000-GS rear derailleur
    €55.00
    VAN RYSEL

    SHIMANO 105 RD-R7000-GS rear derailleur

  18. 10-Speed Long Cage Rear Derailleur Deore M5130
    €48.00
    ROCKRIDER

    10-Speed Long Cage Rear Derailleur Deore M5130
  19. Pair of Jockey Wheels for XT 11-Speed Derailleur
    €11.00
    SHIMANO

    Pair of Jockey Wheels for XT 11-Speed Derailleur
  20. 1x8-Speed Medium Cage Rear Derailleur M5185
    €27.00
    ROCKRIDER

    1x8-Speed Medium Cage Rear Derailleur M5185
  21. 10-Speed Rear Derailleur AdventX
    €55.00
    ROCKRIDER

    10-Speed Rear Derailleur AdventX
  22. Rear Derailleur Microshift 8/9 Speed RD-M46S
    €32.00
    ELOPS

    Rear Derailleur Microshift 8/9 Speed RD-M46S
  23. 1x11-Speed Long Cage Rear Derailleur Deore M5100
    €65.00
    ROCKRIDER

    1x11-Speed Long Cage Rear Derailleur Deore M5100
  24. 10-11-Speed Long Cage Rear Derailleur Deore M5120
    €46.00
    ROCKRIDER

    10-11-Speed Long Cage Rear Derailleur Deore M5120
  25. Rear Derailleur Microshift
    €50.00
    VAN RYSEL

    Rear Derailleur Microshift
  26. Rear Derailleur Microshift Advent 1X9 Speed Medium Screed
    €55.00
    ROCKRIDER

    Rear Derailleur Microshift Advent 1X9 Speed Medium Screed
  27. Rear Derailleur 11-Speeds Microshift M665M
    €48.00
    ROCKRIDER

    Rear Derailleur 11-Speeds Microshift M665M
  28. 2x9-Speed 31.8/34.9 mm Top / Bottom Pull Top Swing Front Derailleur
    €21.00
    ROCKRIDER

    2x9-Speed 31.8/34.9 mm Top / Bottom Pull Top Swing Front Derailleur
  29. Microshift 2S Front Derailleur
    €21.00
    VAN RYSEL

    Microshift 2S Front Derailleur
  30. 1 x 12-Speed Rear Derailleur SX Eagle
    €70.00
    ROCKRIDER

    1 x 12-Speed Rear Derailleur SX Eagle
  31. Rear Derailleur Sora ARDR3000SS 9-Speed
    €32.00
    BTWIN

    Rear Derailleur Sora ARDR3000SS 9-Speed
  32. Pair of Jockey Wheels 9-/10-Speed
    €16.50
    SHIMANO

    Pair of Jockey Wheels 9-/10-Speed
  33. Rear Derailleur RD-M46-L 8/9 Speed
    €21.00
    ELOPS

    Rear Derailleur RD-M46-L 8/9 Speed
  34. 6-Speed Derailleur Tourney
    €18.00
    ELOPS

    6-Speed Derailleur Tourney
  35. Front derailleur - SHIMANO 105 - FD-R7000-F
    €42.00
    VAN RYSEL

    Front derailleur - SHIMANO 105 - FD-R7000-F
  36. Derailleur Rear 10-Speed Long Cage Deore M6000
    €60.00
    ROCKRIDER

    Derailleur Rear 10-Speed Long Cage Deore M6000
  37. Nexus 7 Accessories Kit
    €16.50
    ELOPS

    Nexus 7 Accessories Kit
  38. B'twin 10 and 11-Speed Rear Derailleur
    €36.00
    RIVERSIDE

    B'twin 10 and 11-Speed Rear Derailleur
  39. SRAM GX 10-speed rear derailleur Type 2.1
    €70.00
    SRAM

    SRAM GX 10-speed rear derailleur Type 2.1

  40. 3x9S 34.9 mm Top/Bottom Pull Down Swing Front Derailleur FD-M50
    €13.00
    ROCKRIDER

    3x9S 34.9 mm Top/Bottom Pull Down Swing Front Derailleur FD-M50
  41. Rear Derailleur 11-Speed SRAM NX
    €95.00
    ROCKRIDER

    Rear Derailleur 11-Speed SRAM NX
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Bike Derailleurs at Decathlon Ireland

The bike derailleur is a crucial component that plays an integral role in the smooth functioning of a bicycle's drivetrain system. It serves as the mechanism responsible for shifting gears, allowing cyclists to effortlessly transition between various gear ratios to adapt to changing terrain and riding conditions. Comprised of both front derailleurs and rear derailleurs, this intricate system ensures optimal efficiency and performance, making it an essential part for any avid cyclist.

The hanger bike, also known as the derailleur hanger or dropout, is a small but crucial part of the bike derailleur system. Made from durable materials such as aluminum or steel, it serves as a connection point between the derailleur and the bicycle frame. Its purpose is to provide a secure and stable attachment for the derailleur, ensuring proper alignment and smooth operation during gear shifts.

Explore our selection of bike derailleurs today!