Hi all just about to embark on a rebuild of an older bike. So plenty of questions I'm sure

Hello and Welcome.

What bike is it?

Thanks for the welcome. It's a giant 860 atx. Currently resembling a frame and a box of "spare parts"

Fun Bike.
What color is yours?
giant 860 atx - Google Search

I'd like to agree its fun, but to be honest I've had it about 3 years and never had the chance to ride it.
Mine is the old style yellow black yellow with the old shape shimano deore brake kit