This is a Schwinn Frontier FS
AL
RST 191 CL, TIG Hi Ten lowers, coil spring w/ friction damping.
76mm travel.
Add Fox 36, WTF? 76mm to 110mm-150mm travel. The headtube junction will explode! ;-)
You need to be one porky 14 year old to need a 36. (no offence, if applicable)
2 1/2 grand for your 1st real MTB!
$2500 can get a lot of bang for buck.
I only manage to get my has on my current ride, 2001 Avanti Ventura with a RockShox Judy XC in total for $1000.
I'm with Aussie'SS' on this one, it's not really worth 2005 stock unless it's a major mechnical upgrade. You can easily save $500 in your price range on 2004 stock because you don't need new stickers.
Let's see, reputable entry level full-susser or pimping hardtail?
So called "freeride" or XC?, what's your gear?.
Turn out at a local race, DH, 4X or XC and ask nicely for a ride. Just bring your helmet/s, shoe/s and gloves and parents for transport.
Full-sus DH/FR, burly FR hardtail, DJ hardtail, XC full-susser, XC hardtail; get a good feel for your riding style.
A few Value-Performance brands: Giant, Jamis, Kona, Specialised, Avanti, Ironhorse, etc...
Don't forget about steel, steel-is-real, don't underrate steel because it's used on most low-end bikes.
People still like making steel XC hardtails.
Jamis Dakota XC:
https://www.jamisbikes.com/bikes/04_dakotaxc.html
Or maybe singlespeed...
https://www.konaworld.com/kw_index.cfm
Kona Unit, oh so sexy OX Platinium tubing. Ride singlespeeds and hell, you might love it and not go back!