sku # ST-ZON113550002

Columbus TubingZona externally butted seat tube- 32.7dia – .7/.5/.9 wall thickness– length =550– steel

With a 31.1 ID, this tube will work with most 30.9 dropper posts. It also has a really long lower butt (245mm) so you’ve got room towork with if you want to use it in a smaller frame.

276g – Weightisbased on a representative tube. Actual weight may vary slightly.

Please see tube graphicin image gallery for dimensions.