shims-smallseatpost diameter pic

Shims for 27.2 diameter post: 28.6, 29.2, 29.4, 29.6, 29.8, 30.0, 30.2, 30.4, 30.8, 30.9, 31.6, 31.8, 34.0, 34.9

Shims for 30.9 diameter post: 31.6, 31.8, 34.0, 34.9

We also make a 26.8 and 27.0 mm post.

Your seapost diameter can usually be found on the lower portion of the Seatpost.


If you have any additional questions call Customer Service at 406.883.3555
or email us at
sales@gravitydropper.com