53cm frame Agattu.
Has your Agattu got a suspension saddle? If so, consider replacing it with one that has'nt a spring loaded stem as it will sit lower down on the frame. This just might solve your problem.
When ordering my Agattu I took this into consideration, it's a 53cm frame but my previous bike was a 57cm frame, and "no" it's not for sale, sorry.
Regards
Rinty145