Joined: Jul 2002
Posts: 40,863
Likes: 3,115
From: Sacramento, California, USA
Bikes: Specialized Tarmac, Canyon Exceed, Specialized Transition, Ellsworth Roots, Ridley Excalibur
How does it ride currently? If it fits you and everything seems to be working well, you may not need to spend much. Maybe just new tubes and a little lube for the chain.
Is there a good local bike shop (LBS) in your town? If so, I'd recommend taking it in asking them to give it a once-over.