Originally Posted by
Wanderer
Lacking mfr specs on specific parts, there are usually spec sheets for tightening bolts, included with most torque wrenches.
Here are a few decent charts of correct torque for attaching components, etc. on bicycles:
http://www.parktool.com/repair/readhowto.asp?id=88
And...
http://www2.bsn.de/Cycling/Torques.html