I have a Trek 2300 that weights in at 24 pounds. Any suggestions on what I can do to lighten it up say to 20 or less pounds! Thanks!

If you don't mind my asking, what's your weight/height?

Wrong sub-forum, try asking in the Roadbike sub-forum.

5'9'' 170ish

drill holes in everything. lots of holes about 3-4mm wide, about 6mm spacing. stop when it breaks. should be much lighter if you remove about 50% of the metal.

spend about $5,000 bucks on really light carbon tubular wheels. you can make another 2 lbs difference there.

OR, come over to the roadbike forum and ask there. you may get a real answer there.

strip everything off the frame, buy new parts including wheelsets or build new hubs and rims yerself. after about 2000 bucks you can be there.

a quick way is get a titanium cluster, carbon stem and handlebars and crankset. that might do it.

Easton EC90 SLX fork.
Alien Carbon seatpost.
Zipp 303 tubular wheelset.
SRAM Red group.

In the training and Nutrition section: I can't beleive you haven't been told to just lose 4lbs of your own weight.

SO,

Why don't you just lose 4lbs of body weight?

there is a lot of weight hidden in the bottom bracket and crank. after upgrading to lighter wheels, you might want to look there

Chop off your arm below your elbow.

He just needs lighter shoes. Rotating weight is worth 10x.

Cut off his feet!

Paint it white.
Either that or loose a few lbs.

just the other day I saw some hot on a madone get passed by a 70+guy on an old steel touring bike that had to weigh at least 25lbs, its not the bike its the engine, put down your soft drink and geta pedalin.

Some truth in that! Pushing a heavy bike will make you stronger. BUT it is more fun on a lighter one