PNW Components Cascade Replacement Cartridge Kit - 125mm YGroup_7033774473261 resulting in a chain that

resulting in a chain that engages the cassette and chainring with less friction

giving you the power to change your compression damping characteristics in as little as five minutes

With it's quick release system

The perfect kit for periodic maintenance

It's designed to guarantee chain retention

PNW Components Cascade Replacement Cartridge Kit - 125mm YGroup_7033774473261 resulting in a chain thatIf you have the PNW Components Cascade dropper post in 30. 9 or 31. 6mm diameter and need to replace your air cartridge then this is what you need The replacement air cartridge for the 30. 9 or 31. 6mm diameter Cascade dropper post is available to suit 125mm drop models.