Fair points. But I'm not looking to compete in the next MTB world
champs. I'm looking to get a replacement for my 10 year old hard-tail
which finally wore out its welcome on the Andersons fire trail a few
weeks back. That was only a $400 bike back then and the quality of
parts have been high enough for my usage.

I get the feeling that sub 15kg is a good aim for a dually ?

Not sure what the weights are for these, but what are peoples opinions
on:
- Mongoose Wing Super ($1100)
- Appollo Vanquish ($700)
- Learsport (top model dually) ($700)