Kogel Kolossos Speed SRAM Red AXS Rear Derailleur - Raw

Speed, efficiency, and precision—refined to the next level. The all-new Kogel Speed Kolossos for SRAM Red AXS E1 is engineered to deliver peak drivetrain performance for riders who demand every possible advantage. Designed to reduce friction, improve aerodynamics, and sharpen shifting precision, this oversized derailleur cage system stands as the fastest Kolossos to date.

With its streamlined, performance-driven design, the Speed Kolossos enhances aerodynamic efficiency, helping you slice through the air while preserving the smooth, reliable wireless shifting of SRAM’s latest Red AXS groupset. The precision-machined cage and oversized ceramic pulleys work to minimise drivetrain resistance, ensuring maximum power transfer with every pedal stroke.

For riders targeting podium finishes or chasing personal bests, the Speed Kolossos for SRAM Red AXS E1 delivers a smoother, faster, and more efficient ride—because at the top level, every watt 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.
• 14T-tooth upper pulley
• Near universal road & gravel derailleur compatibility

Compatibility:

• SRAM Red AXS E1 (2024) backwards compatible with previous generation Red and Force AXS.  Does not work with Rival derailleurs.