PNW Components Rainier V3 Replacement Cartridge Kit - 170mm Ignore Wholesale Tier 2 Brand Rule The internal width is 30mm

The internal width is 30mm

The ring centerline is ~2mm from the ring's mounting face so they usually sit about 2mm closer to the frame than the stock big ring (depends on the stock ring)

Including: 45 degree bite valve

1 x Battery pack

PNW Components Rainier V3 Replacement Cartridge Kit - 170mm Ignore Wholesale Tier 2 Brand Rule The internal width is 30mmIf you have the PNW Components Rainier dropper post in 30. 9, 31. 6 or 34. 9mm diameter and need to replace your air cartridge then this is what you need. The replacement air cartridge for the 27. 2mm diameter Rainier dropper posts is listed separately. The replacement air cartridge for the 30. 9, 31. 6 or 34. 9mm diameter Rainier dropper post is available in lengths to suit 125mm, 150mm, 170mm and 200mm drop models.