Kogel Kolossos DURA-ACE R9200 & ULTEGRA R8100 Oversized Derailleur Cage - Black

Kogel Kolossos DURA-ACE R9200 & ULTEGRA R8100 Oversized Derailleur Cage - Black Kogel

Kogel Kolossos DURA-ACE R9200 & ULTEGRA R8100 Oversized Derailleur Cage - Black

Kogel Kolossos DURA-ACE R9200 & ULTEGRA R8100 Oversized Derailleur Cage - Black

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Why Choose the Kolossos for Dura-Ace R9200?

The Kogel Kolossos for Shimano Dura-Ace R9200 and Ultegra R8100 brings World Tour-level drivetrain efficiency to your road bike by replacing your stock pulleys with a ceramic 12-tooth top pulley and a 19-tooth bottom pulley on the stiffest cage Kogel builds. Designed with the demands of professional racing in mind, this cage delivers reduced friction, improved shifting accuracy, and better chain retention in a single bolt-on upgrade.

Compatible with both Dura-Ace R9200 and Ultegra R8100 derailleurs, the oversized pulley geometry reduces the chain's wrap angle and distributes load across more teeth, translating to smoother gear changes and less energy lost to friction over long efforts. The ceramic top pulley is manufactured to tighter tolerances than standard steel, delivering lower drag and a longer service life that holds up across a full season of racing and training.

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$295.99
$295.99 $474.99
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  • Orders over $100 ship free!
  • Estimated delivery: May 25 - May 29

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Specifications

  • Compatibility: Shimano Dura-Ace R9200, Ultegra R8100
  • Top Pulley: 12-tooth ceramic
  • Bottom Pulley: 19-tooth
  • Color: Black
  • Cage: Stiffest Kogel aluminum construction

FAQ

Does this cage fit both R9200 and R8100 derailleurs?

Yes. The Kolossos is designed to fit both Shimano Dura-Ace R9200 and Ultegra R8100 derailleurs without modification or adapters.

What makes a ceramic top pulley better than a standard one?

Ceramic bearings are manufactured to tighter tolerances than steel, producing less friction and a longer service life, especially noticeable at high cadences during sustained efforts.

How does a 19-tooth bottom pulley reduce drivetrain friction?

Larger pulleys reduce the chain wrap angle and distribute load across more teeth per revolution, lowering the force required to move the chain through the system on every pedal stroke.

Best For

Road racers and performance cyclists running Shimano Dura-Ace R9200 or Ultegra R8100 who want to extract maximum drivetrain efficiency, especially on long rides and races where sustained wattage and clean shifting matter most.

Kogel Kolossos DURA-ACE R9200 & ULTEGRA R8100 Oversized Derailleur Cage - Black Reviews:

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