The verdict
The Razor MX650 Dirt Rocket is how a lot of people first ride something that looks like a dirt bike — it's cheap (~$649), everywhere (Walmart, Target, Amazon), and genuinely fun. But be clear about what it is: a toy-grade electric ride-on for teens, not a real electric dirt bike. It runs a 650W motor, a lead-acid battery, and tops out at 17 mph, and it earns a VoltRipper Score of 73/100 — a fair, class-appropriate result, because our Score judges it as the budget teen ride-on it is, not against $13,000 race machines. Judge it as affordable teen fun and it's a fine little bike; judge it as a Sur-Ron and it isn't remotely close.
First, the reality check on the score
The VoltRipper Score measures fitness for purpose — how well a bike does its own job — so the MX650 is scored as a cheap teen ride-on, not against a Stark Varg. On that basis a 72 is honest: a capable, affordable entry ride-on that does what it's built for. It lands in the low 70s rather than higher because a lead-acid battery and toy-grade build are real limits even for a budget bike — but it's a fair score, not an insult. Compare it to other cheap ride-ons, not to a real e-moto.
What it actually is
The MX650 is a genuine ride-on electric motocross bike built to a budget. It has a high-torque 650W chain-driven motor, a 36V sealed lead-acid battery (good for about 40 minutes / 10 miles per charge), 16″/14″ pneumatic knobby tires, dual suspension, adjustable riser bars, and a UL2272-certified electrical system. It's rated for ages 16+ and up to 220 lb — which surprises people: despite the "dirt bike" styling, it's sized for teens and light adults, not young children.
The caveats (what "toy-grade" means)
- Lead-acid battery. Heavy, with a shorter lifespan and less punch than lithium; expect ~40 minutes of ride time and slow charging.
- 17 mph and simple. Fine for casual yard/trail fun, but it's slow and basic next to a real e-moto.
- Not for young kids. The 16+ / 220 lb rating means it's a teen bike; the smaller MX350 is the option for younger riders (below).
- A fun bike, not a progression bike. It teaches throttle basics, but a serious young rider will want a real youth bike, not more Razor.
MX350 vs MX650 — pick by rider
Razor's Dirt Rocket line has two main sizes, and the difference matters:
- Razor MX350 (~$249): smaller and slower — 24V, ~14 mph, ages 13+, up to 140 lb. The budget entry for a younger/lighter teen.
- MX650 (this review) (~$649): bigger and faster — 36V, ~17 mph, ages 16+, up to 220 lb. For older, heavier teens (and light adults).
Match the bike to the rider's age and weight — an MX650 is too much bike for a small kid, and an MX350 is quickly outgrown by a teenager.
Why it scores 73
- What it does well: cheap, widely available, real pneumatic tires and suspension, and an electrical system certified compliant with UL 2272 by an accredited testing lab — the only bike in our catalog with a published device-level certification, which matters if you live somewhere that restricts uncertified system — a legitimate affordable ride-on.
- What holds it back: a lead-acid battery, 17 mph, and toy-grade construction are real limits even for a budget ride-on, which is why it lands in the low 70s rather than higher.
- The score is honest: it's a good cheap ride-on, and the 72 says exactly that — not a real dirt bike, not pretending to be.
Who it's for — and who should step up
Buy it if you want inexpensive, widely-available fun for a teen, and you understand it's an entry ride-on, not a performance bike.
Step up if you have a serious young rider — a STACYC 20eDRIVE teaches real skills, and a Greenger G2 is an actual youth MX bike — or an adult who wants a real e-moto, in which case nothing Razor makes will satisfy.
The bottom line
The Razor MX650 Dirt Rocket is exactly what it should be: cheap, fun, and everywhere, a fine first taste of electric off-road for a teen. Its 73 Score just places it honestly — a good budget ride-on, not a real dirt bike. Buy it for affordable fun and set expectations accordingly; step up to a STACYC, a Greenger, or a full e-moto when the rider is ready for the real thing. Sizing a bike to a rider? Our kids guide sorts it by age.
Go deeper on the Razor MX650 Dirt Rocket:
VoltRipper is spec-verified and data-driven — we do not claim hands-on testing of this bike. Specs and prices are cross-checked against Razor and major retailers; where a manufacturer figure is unclear, we don't inflate it.
FAQ
Is the Razor MX650 Dirt Rocket worth it?
As cheap, affordable teen fun, yes — at ~$649 it's how a lot of people first ride something that looks like a dirt bike, it's available everywhere (Walmart, Target, Amazon), and it's genuinely fun. But be clear about what it is: a toy-grade electric ride-on for teens (650W motor, lead-acid battery, 17 mph), not a real electric dirt bike. Its VoltRipper Score of 73 is a fair, class-appropriate result — our Score judges it as a budget ride-on, and as one it does its job. Judge it as budget teen fun and it's a fine little bike; expect a Sur-Ron and it isn't close.
Is the Razor MX650 a real dirt bike?
No — it's a toy-grade electric ride-on for teens, not a purpose-built e-dirt-bike. Its 650W motor, lead-acid battery, and 17 mph top speed put it in a completely different category from a Sur-Ron, Talaria, or even a STACYC trainer. That's not a knock — for ~$649 of casual fun it does its job — but don't expect real dirt-bike performance or durability.
What's the difference between the Razor MX350 and MX650?
They're two sizes of the same Dirt Rocket line: the MX350 is the smaller, slower, cheaper model for younger, lighter kids, and the MX650 is the larger, faster (17 mph) version for older teens. Pick the one that matches your rider's size and age — the MX650 for a bigger teen, the MX350 for a younger child.
What age is the Razor MX650 for?
Razor markets it for older kids and teens (its age rating skews toward the mid-teens), but fit really depends on size and skill. It's a toy-grade ride-on, so match it to your rider, start slow, and gear them up. For a younger child, the smaller MX350 or a proper trainer like a STACYC is a better fit.