Cane Creek Seat Post Spacer 27.2 to 31.8 Black Suspension Seatposts Sizing Shim

Cane Creek Post Sizing Shim ID-27.2/OD31.8

These precision made sizing shims are designed to allow a 27.2 seat post to precisely fit a  bicycle frame with a 31.8 seat-tube!
(Your Existing Seat Post Should Have The Size of Your Seat Tube Engraved In It!)
Features: 7005 T6 aluminum, black anodized, laser etched with sizing info
3-7/8 inches long

27.2-31.8mm B