For seatpost diameters not listed as "Direct Insert" please choose from the following shims.
Please note: You will require either a 25.4mm or 27.2mm seatpost with a matched shim for a safe & proper fit.
This range of shims is specifically for use with OD 25.4mm Thudbuster Posts.
Shims For Irregular Sizes From OD 26.0mm to 27.2mm
Choose a Shim to Fit Your Bike