I have basically been dx with the same condition only at L4-L5. The doctor told me riding (both road and mtb) are Ok cause anything that keeps my back in a flexed condition is good. Ramrod straight activities like hiking no good. Just need to keep my activities in reason.

And I am assuming you have discussed your chiropractic treatments with your ortho doctor and he's said that's OK? With Stenosis you generally have to watch doing anything that might further inflame or irritate the muscles around the spine or the spinal cord and canal itself. I wouldn't think of such treatments at this time until the ortho has had an opportunity to do first steroid injections etc. Remember never fool around with cervical issues. One mistake and you can become a quadraplegic! Make sure you discuss this with your doctor.