I have a InSync 323 fork on my Trek 4300. I have well over 5000 miles on the bike. Lately the front fork spring makes a noise (squeak) when i hit big bumps. It sounds like the rebound spring is dry and needs lubed.
Are these things serviceable or not? I tried to drip some chain lube down inside of it and worked the fork up and down many times. It still makes a squeaky noise. I had oil running out the bottom of the fork so i know i used enough.
I don't want to spend a bunch of money on this bike. Any advice for how to shut it up? Thanks.