Razor MX650 Review: Razor's Biggest Dirt Rocket
The largest bike in Razor's Dirt Rocket line, explained from Razor's own specs and manual: speed, sizing, battery, brakes, and who should look elsewhere.
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The Razor MX650 Dirt Rocket is the largest bike in Razor’s kids’ and teen electric dirt bike line. It pairs a 36V battery with 16 and 14 in tires, dual disc brakes and front and rear suspension, and Razor rates it for riders 16 and up.
This review is research-based, built from Razor’s product page and owner’s manual as of November 2026. For the whole range of kids’ bikes, see our age-by-age guide to kids’ electric dirt bikes.
Razor MX650 Dirt Rocket
Who it's for: Riders 16 and up, up to 220 lb, riding at modest speed on private land or a legal off-road area.
The MX650 shares a manual with the MX500 and SX500 McGrath and steps up in rider limit and speed. Compared with the MX350, it adds bigger wheels, dual disc brakes and suspension.
At about $850, it costs roughly a quarter of an entry-level adult e-moto, with performance to match.
- Ages
- 16+
- Max rider
- 220 lb
- Top speed
- 17 mph
- Battery
- 36V sealed lead-acid
- Run time
- Up to 40 min
- Wheels
- 16 in front, 14 in rear
- Brakes
- Dual disc
- Suspension
- Front and rear
Pros
- Dual disc brakes and front and rear suspension
- 16 in front and 14 in rear pneumatic tires
- About $850 (November 2026)
- 220 lb rider limit
Cons
- Sealed lead-acid battery: up to 40 minutes, up to 12 hours to recharge
- No low-speed mode for learning
- Razor publishes no motor wattage, seat height or bike weight
- 90-day warranty, no extended option
Specs explained
Speed. Razor lists up to 17 mph and calls it “approximately” 17, depending on rider weight, hills, tire pressure and charge. There’s no high and low switch, so new riders start at full speed.
Battery. Three 12V sealed lead-acid batteries make 36V, for up to 40 minutes of continuous riding. The first charge takes 12 hours, later charges up to 12 hours, and Razor recommends a 24-hour maximum.
Chassis. A steel frame with a double-crown fork, front and rear suspension, and hand-operated dual disc brakes. Razor doesn’t publish suspension travel, seat height or bike weight.
Electrical safety. Razor says the MX650 is certified compliant with UL2272.
What Razor’s manual says about safety
The manual states the MX650 “is not for children under age 16 or heavier than 220 lb,” and adds that “not every child 16 years old will be suited to the MX650.” It calls for an approved helmet with the chin strap buckled, elbow and knee pads, and lace-up shoes, and recommends long sleeves, long pants and gloves.
It also bans jumps, curb grinding and stunts, night riding, wet or icy riding and two riders. For proper off-road protection, see best dirt bike helmets and our dirt bike gear guide.
How it compares
| Product | Ages (maker) | Max rider | Top speed | Battery | Brakes | Price tier | Link |
|---|---|---|---|---|---|---|---|
| Razor MX350 Dirt Rocket | 8+ low mode, 13+ high | 140 lb | 10 / 14 mph | 24V sealed lead-acid | Rear hand brake | $ (under $500) | Amazon |
| Razor MX500 Dirt Rocket | 14+ | 175 lb | 15 mph | 36V sealed lead-acid | Dual disc | $$ ($500 to $1,000) | Amazon |
| Razor MX650 Dirt Rocket | 16+ | 220 lb | 17 mph | 36V sealed lead-acid | Dual disc | $$ ($500 to $1,000) | Amazon |
The MX500 (14+, 175 lb, 15 mph) is the same platform for younger teens; see our Razor MX500 review. The MX350 is for kids 8 and up; see the Razor MX350 review.
The next step up is a real e-moto. Sur-Ron’s youth Light Bee S claims 3.5 kW and 31 mph, and adult light e-motos claim around 47 to 50 mph; see our electric dirt bike buyer’s guide and best electric dirt bikes for teens.
Who should buy it
- Riders 16 and up who want an affordable first electric dirt bike.
- Families riding on private land at modest speeds.
- Bigger teens who have outgrown the MX350’s 140 lb limit.
Who should skip it
- Anyone under 16, per Razor.
- Riders who want trail speed, long range or quick charging.
- New riders who need a low-speed learning mode.
Related guides
- Electric dirt bikes for kids: the age-by-age guide
- Razor MX350 review: for ages 8 and up
- Best electric dirt bikes for 10-year-olds: younger riders
Frequently asked questions
How fast does the Razor MX650 go?
About 17 mph. Razor's manual says speed depends on rider weight, inclines, tire pressure and battery charge. It has one speed setting, with no low mode.
What age is the Razor MX650 for?
Razor rates it for 16 and up, with a 220 lb rider limit. Its manual says not every 16-year-old will suit it and riders must fit it comfortably.
How long does the Razor MX650 battery last?
Up to 40 minutes of continuous riding, per Razor. Recharging takes up to 12 hours.
Can an adult ride a Razor MX650?
Razor's limit is 220 lb and the age rating is 16 and up, so a light adult fits the numbers. Adults wanting real trail performance should look at a light e-moto like the Sur-Ron Light Bee X, which is a far more powerful bike.
What is the difference between the Razor MX500 and MX650?
The MX500 is rated 14+, 175 lb and 15 mph; the MX650 is 16+, 220 lb and 17 mph. Both use 36V lead-acid batteries, 16 and 14 in wheels and dual disc brakes.