35% off Kolossos oversized derailleur cages

Most of the drag in a rear derailleur comes from the lubricant and the seals, not the chain. Kolossos goes after it with oversized pulley wheels on a CNC machined cage stiff enough to hold your shifting accurate under load.

Then pick your bearing. Kogel ceramic and road seals across the range, or Pulsar, full ceramic turning in ceramic races with nothing to corrode and nothing to lubricate.

Every Kolossos cage except ST is 35% off. No code needed.

Serviceable, not disposable. Every cage in this sale carries two years of few questions asked cover on defects and normal wear, then moves into our Lifetime Performance Warranty. An annual service keeps it there. Read the warranty →