I notice lastnight on my way home from work the I had a clunk from the front end of the bike. I had to make a hard stop at an intersection so the forks were compressed. After the bike settled I grabbed the front brake lever and pushed the bike while still on it to load and unload the forks. I installed progressive monotubes approximately 2 years ago and this is the first time I noticed the clunk. Has anyone else ever notice anything like this with the monotubes?