Physical therapists saved my knee from IT probs
After suffering torn cartilage in *both* knees because of biking overuse and unknown tight ITs, the only thing that saved me was good physical therapy. This problem is SOOOOO common that any experienced PT will know exactly what to help you with. If my ridiculous insurance had covered PT back when I had the injury, I could have avoided *9 months* (I'm not kidding) off the bike because I was in so much pain! Instead I had to wait until I started grad school, where my insurance actually covered my PT. I was pain free in TWO SESSIONS!
Some exercises you should ask them to help you with:
1-leg squats off a 1" step/box (start low, progress to high)
Hip hikes off a step/box
"Pigeon" stretches (I can't even begin to explain this one. I use the Yoga term for it)
Standing IT stretch (crossing legs and leaning torso away from leg you're stretching)
Tight ITs not only come from lack of stretching, but from weak glutes, too. I used to do what I thought was a lot of glute work, but it turns out I was missing glute medius most of the time. Now that I do my PT exercises, I have NO PAIN when I ride for hours, even though I still have that cartilage tear.
Once again, I can't recommend good PT enough for knee issues! Can you tell? Best of luck!
There's only one thing better than spending a day on my bike: Spending a day on my bike in good company.