Best Bike Under 600??

[Trek420]

I’m pretty sure the best MTB under $600 is going to be a used one.

That's true of almost any bike. Often the problem, particularly for new or newer riders, is bike fit. For instance next to me is a road bike I found for about $50 in a thrift store. I could see that it would fit my wife perfectly. Even without a test ride it fit like an old pair of Levi shrink to fit blue jeans. Of course now that it's been repainted, Brooks B67 saddle, Velo Orange 650 wheels etc etc it's a $2,000 bike. But it WAS $50 and really would have been fine without all the work.

Many shops sell used bikes, trade ins, last years models ... That can give you the best of both worlds. You get the savings of a used bike and service of a shop which should let you dial in the fit.

If I was a new rider looking to save that's what I look for.