Quote Originally Posted by alophysio View Post
Have you seen a physio? Done exercises?

Contact the Chartered Society of Physiotherapists to find a physio near you...
I have to agree here. Everyone is speculating. Many people have ankles that click and 'pop' when moved about. Be sure you don't just get in the habit of doing it to make it click or it might become sensitive.

Another potential reason is just movement of the peroneal tendons around the outside of your ankle. This is no major concern at age 14 really. It is interesting you say you mountain bike. I too do this regularly and can you advise if you are using clips (pedals with clips)? If so check you have some movement in them. Otherwise fixing the foot to rigidly to the pedal can make the ankle move about more and can potentially lead to some laxity and clicking.

But just to say again - see your local Sport's Physio - perhaps one with an interest in mountain biking

p.s. I have a specialized stump jumper and an XC comp. How about you?