X-Ray pictures, what should I do?

[physiobob]

You're probably correct. I'd suggest an assessment with a good physio who also has a knowledge of cycling as this is impt. I cycle, road and MTB, and bike setup is just as impt as body setup. Get them to see what is limiting your position and movements on the bike and see what needs tweaking both on you and on the bike. Let us know how you get on

[msk101]

I second physiobob... your xrays look perfectly ok - your SIJ joint margins are clear and not sclerotic or notably inflamed/adhesed (atlhough i am not a radiologist) - they look fine to me. You need a full assessment with a physio who can assess your pelvis and lumbar spine and your bike set up. You may also consider hip flexor length and glute med strength as a power imbalance causing pelvis issues, and core strength as an exercise based therapy. Cycling is bike set up, posture, strength, length and technique.

Cheers,
msk101