Hello.

I recently bought a Cube LTD pro 29 size 21.

In order to get a good fit i need to raise the saddle 2.4 cm away from the limit.

I have around 13 - 13.5 cm tube inside the frame.

I am kinda worried that it will break when i ride the bike, or is that me just worrying about nothing?

My weight is around 165 lbs.

Here is some photo of the seat tube:

Album