Kogel Kolossos Speed Shimano Dura-Ace/Ultegra 11/12-Speed RD Black
FREE SHIPPING ON THIS ITEM*
Kogel Kolossos Speed Shimano Dura-Ace/Ultegra 11/12-Speed RD Black is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
Free Shipping on orders over $120 (excludes some large/oversized items) AUS only.
$20 Flat rate Express Shipping option available for non-bulky items. Usually delivered the next business day (Metro Areas) AUS only.
Same Day Dispatch on orders before 2pm (excludes supplier stock).
Delivery times will vary from 2-5 business days for metro areas and 7-14 business days for rural and remote areas.
Please see our full Shipping Policy here
Speed is everything. The latest Kogel Speed Kolossos for Shimano 12-speed Dura-Ace and Ultegra is developed to deliver the perfect combination of aerodynamics, drivetrain efficiency, and long-lasting performance. Built for riders chasing every possible advantage, this is the fastest Kolossos system yet, engineered to reduce drag, save watts, and optimise power transfer.
With its streamlined, race-focused design, the Speed Kolossos enhances aerodynamic performance while preserving the precise and reliable shifting Shimano drivetrains are known for. The precision-machined cage paired with oversized ceramic pulleys minimises friction, helping ensure more of your effort is converted directly into speed.
For riders seeking an extra competitive advantage, the Speed Kolossos for Shimano 12-speed delivers smoother operation, improved efficiency, and race-ready performance where every marginal gain counts.
KEY FEATURES
- Stiffer & More Aero: A refined shape inspired by our Aero Kolossos keeps things sleek and integrates perfectly with today’s modern road and gravel bikes.
- Larger 20-Tooth Lower Pulley: Bigger means lower friction, which means more speed. This is one of the biggest upgrades, improving chain efficiency and overall drivetrain smoothness.
- 12T Upper pulley
- Near universal road & gravel derailleur compatibility
Compatibility:
- Shimano 12sp Dura-Ace and Ultegra derailleurs. Backwards compatible with Shimano 11sp Dura-Ace and Ultegra derailleurs
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