Originally Posted by Bekologist
a compass attached to or near a hunk of ferrous metal may be innacurate;
to use a compass while biking with any degree of accuracy you need to get away from the bike by 6-10 feet.
(I just took a Silva bearing-shoot compass and checked my Trek 520 in the living room....i got needle draw from the bike starting at about 6 feet away....)
I was gonna mention that fact...
Get yourself a good lensatic compass, and
learn how to use it.
You may not know where you are, but at least you'll know where you're goin!