I have maximum ACL laxity. I don't have one in my right knee - you don't need one for cycling.

After a lot of attention to strengthening it top notch orthopedic surgeons cannot tell that I do not have an ACL in my right knee without an MRI. So, you can protect your knee well by building the muscles around it. Make an appt with a PT that specializes in knees and I'm willing to bet you get this fixed in 6 weeks or so and can out riding again.

I'm wondering how in the heck you are hurting your ACL while riding anyhow. Is it possible that your chiro and PT are unfamiliar with the effects of cycling on knees? The reason I ask this is that I recently had an injury that only a person without an ACL can have that wound up straining my popelitus muscle (little obscure muscle that wraps around the back of the knee, helps you twist your leg) to the point of pretty intense pain. I went though exams by two sports medicine docs both of whom incorrectly diagnosed it, my GP who was a great help in getting me referrals to all the points I needed for diagnosis even though he didn't know what it was either, and a top notch orthopedic surgeon who was completely mystified by the problem. I finally worked with my GP to find the best knee PT in the Twin Cities. She figured it out in the first exam and fixed me right up. This would have been the short path to resolving it.

So, it *really* pays to get to a specific and known specialist in this stuff who understands the sport. Too, not every PT is a knee expert - that's what I'd find and it ought to help you solve your problem. Any help you get that shortens your time off the bike would be welcome, I'd guess.

J.