I've watched too many riders blow $3,000-$8,000 on bikes that were completely wrong for them. Here's what most people learn the hard way:

1. A 450 is not a beginner bike. I don't care what the guy at the dealership says. If you're under 180lbs and have less than a year of seat time, a 250F will make you a better rider faster. The power-to-weight ratio on a 450 will punish every mistake you make.

2. "Low hours" on a used bike means nothing without context. A bike with 50 hours of track time has been beaten harder than one with 200 hours of casual trail riding. Always ask WHERE it was ridden, not just how much.

3. Japanese Big 4 for your first bike. Period. Honda CRF, Yamaha YZ, Kawasaki KX, or Suzuki RM. Parts are cheap, mechanics know them, resale holds. KTM and Husqvarna make incredible bikes — but the maintenance costs and parts availability will sting a first-time owner.

4. Budget $500-$1,000 on top of the bike price. Gear, basic tools, oil changes, air filters, maybe new tires. Nobody talks about this and then new riders act surprised when they're another $800 deep after the first month.

5. Check the frame and subframe before anything else. Cosmetic damage is negotiation leverage. Frame damage is a walk-away. Grab the handlebars and push down hard on the front suspension — if the forks are binding or making noise, that's a $300-$800 fix the seller "forgot" to mention.

This is the kind of stuff I break down every week inside DirtSmart. If you're about to buy, do yourself a favor and get a second opinion first.