seat post size

dirk-diggler

am i been thick here my qr post clamp say 31.8 bu t my post measures 26 and a bit which size do i take

nicklouse

the 26 and a bit. it will say on it what size it is.

the clamp size is not the same as the seat post size.

dirk-diggler

sadley the post is a bit worn and i cant se diddley

nicklouse

then have a look in the FAQs for a good way to get the right info. as you do need the correct size post.

The Rookie

Vernier callipers will tell you the ID of your seat tube and the OD of the current post, but 27.2mm is probably the most common for a 31.8 clamp size.

Simon