Speed, efficiency, and precision—elevated. The all-new Kogel Speed Kolossos for the new SRAM Red AXS E1 is engineered to deliver the ultimate drivetrain performance for those who demand every possible advantage. Designed to reduce friction, optimize aerodynamics, and enhance shifting precision, this oversized derailleur cage system is the fastest Kolossos ever.

With a sleek, speed-focused design, the Speed Kolossos is built for aerodynamic efficiency, helping you cut through the wind while maintaining the signature crisp, wireless shifting of SRAM’s latest Red AXS groupset. The custom-machined cage and oversized ceramic pulleys minimize drivetrain resistance, ensuring that every watt you push goes directly to the road.

If you’re chasing podiums or pushing personal limits, the Speed Kolossos for SRAM Red AXS E1 delivers smoother, faster, and more efficient performance—because at the highest level, every watt matters.

Key points:

• 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.