Kogel Bearings Aero Kolossos Oversized Cage (Black) (R9200)

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Price: $699.99

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Kogel Bearings Aero Kolossos Oversized Cage Description:

The Kogel Bearings Aero Kolossos Oversized Cage is comprised of high-quality alloy pulley wheels complete with ceramic ball bearings that work to reduce chain drag, as well as a CNC-machined aluminum outer shield that fosters a streamlined aerodynamic profile.


  • Oversized pulley system with aerodynamic outer shield and premium pulley and bearing construction
  • Pulley wheel shield is constructed from CNC-machined aluminum, with a built in internal spine for increased stiffness
  • Both pulleys contain ceramic balls and steel races, for low-drag and superior efficiency
  • Lower pulley features long tooth profile for ideal chain retention and reducing chain jams
  • Tough enough to handle aggressive shifting and sporadic off-road use


  • Compatibility: SRAM Red/Force eTap AXS, Shimano R8000/8100 Ultegra (Di2 or Mechanical), Shimano Dura Ace 9100/9200 (Di2)
  • Speeds: 12 Speed (SRAM), 11/12 Speed (Shimano)
  • Upper/Lower Pulley Size: 14/19T
  • Color: Black

This product was added to our catalog on May 17, 2024