Giannini Classical Question

A friend bought one and the neck is bowed a bit. Is there any way to bring it down? Why don't this type of guitars have truss rods? Would be nice. Thanks in advance if anyone knows how to lower this type of neck....Cheers

A good concert classic doesn't need a truss rod because the neck is a massive piece of timber and the strings are nylon (or Nylgut).

Generally you are more likely to deform the soundboard than the neck over time, the bridge lifts up and bows the top.

Has this classical ever been strung with steel or other metal strings? - big bad no-no!
The only "metal" strings you can put on a classical are Thomastik's steel rope and silver/nylon type (Classic-S), which are the same or less strain than nylon. I'd recommend a good nylon or Aquila Nylgut.

Jefrs, It's got nylon standard set now, no idea what's had in the past. I guess this neck insn't massive enough or it's one of their entry level guitars. Or maybe age is a factor with it being a 1967 model. Maybe it's the soundboard that's bowed, I'll have to look at it again.....Thanks

My concert classic dates from mid-60s and the neck is still dead straight. The belly has bowed up, which has required the saddle to be lowered, and it actually needs the bridge re-fitted now. Mine has a traditional classical slipper-heel, but if a guitar has the more normal dovetail then maybe the neck can be re-set to compensate. Failing that then remove the frets and plane it, but only if it sounds good enough (a pro re-fret can cost £200).

Jefrs, Not worth having the neck reset. I'm not sure what you mean by the belly has bowed up but this one ( I know, pictures would be nice. I try tonight ) seems like it's a combination of the neck bowing some along with a slight bridge lift even though it's not lifted from the body and the upper fret part of the neck that's over the body has pushed down some. There's an upper & lower brace in this area inside the guitar. I was wondering if it's possible to add a brace between the two to raise this part of the guitar to decrease the bow or will I do more damage than anything possible. Just a thought..Thanks 4 lookin'...Cheers...