After EVERY ride?!?!?!?!

Your buddy is right. During your ride the pressure builds up in your front shocks. I have heard that this is caused by the friction of the shocks doing their work. I'm not sure; but bleed them once after a really good ride, and you will be a believer. I was even told some people do it once during the ride.

Troy

ive known people to do it every race but it only takes a few seconds so its no great hardship.:D

I too do mine before every ride, but I doubt that this is the cause of the seal failure.

It's possible that your seal hasn't really failed. it could simply have some dirt trapped under it that is preventing it from sealing against the fork tube. Take some film negative and gently slip it under the edge of the seal, and work it all the way around the fork tube in a downward-sweeping motion to dislodge any dirt that may be lurking in there, then clean the oil up and ride the bike to see if the leak stops. I have used this method successfully many times.

You do have to bleed the pressure build-up in the forks periodically, as this not only stresses the seals, it also affects the suspension action.

Arequipe,
A small amount of pressure build up in your forks is a good thing. It helps KYB forks work more effiecntly. The pressure is the chemical byproduct of the oxidation of the oil and AL parts inside your forks. With the air rich fork the parts are in a oxidation wonderland..
Regards,
Jer