Back to Forum

what size atv for 8 year old

Buying AdviceKevin BrooksJun 15, 2026, 5:46 PM5 replies

Hey everyone, I'm looking to buy my 8‑year‑old a first ATV and I'm not sure what size is appropriate. He’s about 4'6" tall and has some experience on a small bike, but nothing too powerful. Should I go for a 50‑cc model, a 70‑cc, or maybe something a bit bigger? I’m also concerned about safety and whether the seat height and weight will be manageable for him. Any recommendations on specific models or features to look for would be greatly appreciated!

Thread

Dan WalkerJun 15, 2026, 5:46 PM

I got my 8‑year‑old a 50‑cc Yamaha R‑Max a few years back. It’s lightweight (around 140 lb) and the seat height is about 28 in, which fits his stature. The power is modest, so it’s forgiving if he makes a mistake. I still make him wear a full helmet, goggles, and gloves. The only downside is the limited ground clearance—so it’s best on smoother trails, not rocky terrain.

Derek ColeJun 15, 2026, 5:46 PM

In my experience, a 70‑cc model can be a good middle ground. My son is 8 and rides a Honda TRX70; the extra torque helps on hills, and the seat is slightly higher, which he likes. However, it does weigh more (about 160 lb) and can be a bit tougher to maneuver for a beginner. I always supervise him on steep slopes and enforce a strict speed limit.

Jessica MillerJun 15, 2026, 5:46 PM

Honestly, I’d steer clear of anything above 50 cc for a kid that age. I once let my nephew try a 125‑cc, and he quickly got overwhelmed—especially the throttle response. Even with a reduced‑power kit, the bike felt bulky, and we had a minor crash on a log. Stick with the smaller engine and focus on building confidence before moving up.

Ryan EdwardsJun 15, 2026, 5:46 PM

If you’re open to a 4‑wheel ATV, consider the Polaris Sportsman 50. It’s designed for kids, with a low seat, easy‑to‑reach controls, and a limited‑speed governor. The safety features include a kill switch and a sturdy frame. Some parents complain the suspension is a bit soft for rough trails, but for neighborhood rides it’s perfect. Pair it with a good set of knee pads and a chest protector.

Sarah CollinsJun 15, 2026, 5:47 PM

One thing to keep in mind is the rider’s weight limit. Most 50‑cc ATVs list a max rider weight of around 150 lb. If your child is on the heavier side, the bike might struggle on inclines. I’d recommend checking the spec sheet and possibly adding a small rear‑suspension upgrade if you go bigger. Also, don’t forget a proper helmet certification—look for DOT or Snell ratings.

Reply