I recently picked up a 2001 Trek Navigator 400 with the intention of using it to commute the 15 miles to and from work a few days per week. I currently ride a Raleigh 7 Speed with 27.5x1.95 tires which is way too slow to commute with and is horrible for inclines.
The bike is in remarkable shape with little wear. I'm going to lose the suspension seat post and add some Continental Contact Urban 26x1.75 tires. I'm not familiar with the Shimano Pushbutton setup, but it shifts flawfelsssly.
My question is about the front suspension. I don't know a thing about suspension maintenance. What should I do to make this bike a perfect city commuter?