>>1447140dont be mistaken MTB were made to take a thrashing
a bike fully equipped should be 28 lbs or less
lighter mtb exist but they are rare and obviously more fragile
and have weird shit on them like shimano BL M600
>trek antelope 800just be glad it has even a slightly thin fork that may flex a little bit
I get the impression the frame geometry will be good for climbing
what you have is fairly mid range
at least compared to the worst I have encountered
>modernizeno need if you can get medium profile canter levers working
if it has low profile canter levers its mostly not worth the bother
just go strait to thick alloy v brakes if that's the case
if the running gear is completely worn out the best thing you could do is to go 7 or 8 speed
unless you feel fine with going hog wild on the hub spacing