What owners do with it
Who rides it26 owners said
Child under 1042%
Adult under 180 lb31%
Adult 180 lb+15%
Age 10 to 1712%
Stock or modified48 owners said
Upgraded parts79%
Stock21%
Specs
Performance
- Top speed
- 14 mph 10 mph in low speed mode.
- Battery
- 24V sealed lead-acid
- Range (maker)
- Up to 30 minutes (high speed) Up to 60 minutes in low speed mode.
Size and rider
- Max rider weight
- 140 lb
- Rider age (maker)
- 8+ (low speed), 13+ (high speed)
- Maker price
- $349.99
99 owner reviews
I have a really good Batrry so mine doesn’t
I have that same battery it works grate I can get up to like 45 on 3 speed have fun and enjoy
I have it and it works perfectly for me. Maybe it doesn’t work perfectly for you because you’re almost fully grown. It’s for eight-year-olds and five-year-olds.
I have one and it’s pretty fast but only on road mostly
I have it but it won’t even go fast. It’s broken I think.
My MX 350 razor dirtbike goes at 45 miles an hour not even upgraded. How does yours go so slow I meant to say 25 miles an hour😅
Weight limit says 140 but it can carry 200 (me and my son) easily
Yeah when I drive those I got those but my dad sell them now he got a motorbike but the throttle on that electric bike is terrible and you can slide your hand on it
It actually goes 20 and the reason why I know this because I have one of those
it wont burn out his motor very easily ive had mine with a 36v and same model, but yea it is highly recommended im getting a new motor soon
@cantfinndCJ I don’t know because I tried it once then the fucking thing keeps blowing out. I’m trying to figure out a way to keep the wires connecting to the battery. I’ll do a speed test soon.
I have that same one and put a 56 volt blower battery in it. Sketchy but it’s fast.
Man, I have one of these and all of it is good like I could probably be going like mock 10 down the hill
Yep, weighing 160. Im actually going to do this again and see what i reach
Im 5’3” 115lbs, i have a stock 350 that goes 19~ with me on it. And a 800w 36v 350 and that goes 28~ I cant wait to upgrade the stock one i want to go the easy way tho not weld and cut like i did the other bike. Is there any bold on kits?
I used to have to when they both broke in one year 😔
This overbolt kit is great! Super easy to install even if you aren’t the best at these kind of things like me 😂. Pretty simple straight forward plug and play ! Hardest part is figuring out how to fit the battery with the stock plastic covers. Kids loved how fast it goes and how much longer the battery stays charged for ! If you’re mx is dying this is the best most affordable way to bring it back without spends hundreds or thousands.
That shit sucks I had one broke in a month 10 miles per hour sucks
Wait wait man. I didn’t weigh much in this video. So that’s why I’m hitting max speed. But over the winter I’ve put on a few pounds so I may not be able to hit that speed lol
I’m confused? This is the mx350. On high mode but top speed is only 15. We have 2 of these brand new
I got it to a top speed of 32 mph but it only lasted one ride before the motor blew out 😂 but I have looked at some motors and you do need adapters for most of them.
All razors die fast, deal with it, I have hella fun with my hour of battery life
I have one but on mine at full charge it go 25 but mine is blue in way faster
@Eatridefly12its really easy to wheelie it stock plus i got my 36v battery rn just dont have the controller and throttle that will be coming on Monday
I've been riding that same bike for about a year now, and I can relate the range is buns, throttle sucks, and if you want more range, you have to go in the first power mode😭😭🥀🥀
It says 140 but it carries me and my son just fine. 200 lbs total
i have one right now and it died on me when i was like 30 minutes away from my house ( walking distance) and the next day the back tire was popped but something good is the brake like you said and i would recommend for people less than 5 foot to maybe 4'5 because im like 5'6 and i barely fit
By the way, mate the seats not uncomfortable and there goes pretty fast if you charge it fully for at least at least three hours or something it’s the best bike I’ve ever had
Snapped off when I tried to wheelie it stock 😂
Bro I just got one bro it feels so good what are you talking about
The speed on my dirt bike is 14 miles per hour
Thats how fast it is for me when its almost dead and im 4,3 and i weigh 75
Bro I have the same one the seat is not Riley comfortable
I have the bike. It’s pretty good. The only downside is the seats uncomfortable and it takes kinda long to charge because it’s electric dirtbike.
I have a bike. It’s actually a pretty good bike.
I just put a 48v battery in mines got pulled over twice 😂
As someone thats 74kg i have way tpo much fun on my stock mx350
@mitchellclark1863 I have receive more power and more speed, Speed is 23 mph for me
I can get 3 miles off a charge i got 2 12 batterys off temu for 24 $
I got this kit to make an extra mx350 that I have a 36v from the stock 24v and man does it go! I hit about 25 mph on it and I'm 5'6" and 125 lbs. My ten year old son lives this upgrade as well! Definitely an awesome buy! I'll probably get another kit for the other bike I have as well! Thank you Jordybuilds!
I put a 36volt battery in my razor with stock controller and stock motor and I have had no problems.
That’s the exact same dirtbike I have is 15 miles an hour That’s cool🎉🎉🎉🎉😂😂
I have one it’s pretty good I ride around with my freind he also has one but it’s all blue I have the same one as u tho😅
I’m 5’10” and ride it. A mx500 would be a better fit but throw some handle bar risers on the mx350 and you’re good for a little pit bike
It’s the slowest thing I’ve ever ridden I sold mine within a month of getting it, just get a surron
The 350 is so small my knees hit the handle bars so I modded the handle bars and the seat is so uncomfortable I put a super73 seat on
I have one also and the battery takes a long time to charge and works for only like 30 minutes
I have one wat goes 40mph and when I watch vids they look so slow but in real life omg soommminh
I have the stock one and it’s not bad for mr
And whenever I press the throttle, it kind of hurts my hand
I have the MX 350 and the sea is very comfortable
It killed my stock 24v motor a day after modding it but i js ordered a 36v motor to replace it 👍
@MapleBoarder78I modified mine it was a little pricey but cheaper than a 500 and it’s a blast especially with the small size
Lol my battery didn't come with a damn charger wtf lol but everything works great
I just did an updated 36 V build video with a top speed test at the end! I also go over how to install hydraulic disc brakes!
i put a 48V 2000W motor and a 48V 30ah battery in a mx400 and i can hit 36 mph which is insane
Check out my new mx350 upgrade video! Do a top speed test in the end, over 20!
Check out my recent two mx350 videos I do a top speed run. Get up to 25mph
That’s not true . It’s a stock 24v motor now I’m running a 36v kit so I over volted the motor. I think I would know what I’m talking about lol
Stock ones go 7 mph I got a new 48v battery and 5000w motor so mine goes 31 mph
Check out my newest YouTube video on the MX 350. I do a top speed test.
@Crispychickenskin-c3d yes and it runs great
I’m comfortable I have it and I am seven years old and you should probably get rid of it because the chain is not working and I haven’t vote in years and now I’m almost 8 and sometimes I fix it and I’ll be whacking it in then after tomorrow, the chain is just randomly brokenso yeah you should get with it😊
Hey so I had my build for over a month I will say my battery doesn’t charge up all they way not it stays at 36-37 volts and my motor is getting hot if I ride it for like 5 minutes and it smells bad as well I need help
I'm ordering this as soon as it's in stock, we used to have 2 i believe the 1st generation and the 2nd slightly different but not much different. I sold one to my buddy for his kid when my son upgraded to a gas 60cc but those little razors are dope I'm 180 and I ride it around the neighborhood no problem I can only imagine how much more power it'll have with the upgrade. Great set up.! 👌🏽
I'm not impressed with the Jeremy McGrath four wheeler myself it doesn't go up hills it has no speed. But they advertise and showing people riding it and going fast and going up hills yeah ok. Not worth the price I paid for it. The razor mx 350 out does the four wheeler and it was half the price go figure. I'll redoing it all I have parts from e bikes a 1000 watt up to 5000 watt parts. My son is so sad with these bikes. There's better ones out there for the price or a little more but razor should be responsible of fixing these bikes that doesn't do what they advertise and make them do what's advertise then send it back to you. And let's not forget the junkie battery's they use in them too. Blew up in a year not good
Not common at all. I have some bikes going on two years of riding stock motor. It really is just random.
I REALLY suggest getting an 36v motor for anyone doing this build I rode for 10 mins the motor blew
The seats not uncomfortable, but sometimes when I’m wearing shorts it Chafes my thighs while i’m wheeling also mines better bc it’s a 650 so it’s way bigger
I'm 5'8 and 115 lbs and I have a 350 and it's a little small but I really like it cuz it's compact
Haha! It’s a well thought out kit, hit a top of 23 mph on it! About the fastest I want to go on such a small bike. But about 20 min after install I burned the motor out. Gotta look for a new and beefier one. Any suggestions that would work?
I’m 4’3 70 pounds and I rip this thing stock
Mines stock and goes 20 and 30 down hill
@JordyBuilds ok thank you mine works great 👍
That Stacyc bike a piece of shit! I have had nothing but problems with it! Definitely buy the razor I am 160 pound and have a razor 350 that does 65mph lol
About 1ah per mile so 8-12 miles average on the 10ah. Use the full set up including battery linked in description
Over volting motor is faster then a stock 36v 500w. Or put a 13tooth motor sprocket on the 36v motor and it’ll be close to the same but you need motor adapter. Currently testing a smaller 36v motor that will hopefully be bolt in!
I literally got that in my garage right now but the chain does not want to stay on so I’m getting a So I’m getting a gas powered dirtbike
i have a mx350 dirt rocket 13+ i was doing a couple of jumps small and when i was on the ground i took a shurp turn and was sent flying i was ok but the bike wheel would not move a nd the moter made werid sounds can you try to help me
Razor mx400, with 350 watts and 24 volts motor. Battery 36 volts lithium ( Overvolt ) 20 MPH with a 180 pound person. It's been a year and no problems. My grandson has a lot of fun.
I got two for myself but the batteries die quickly
J installed it it rips other than the fact that the power. Cuts when full throttle acclerartion
Replacing the 24V SLA batteries with a 36V is a good project that most anyone can do and that 36V battery lasts for hours. I built 2 of them, but I did retain the brake motor stop feature for safety. I used a Fast Scooter Controller for mine and it worked out great. Also, I added a headlight and taillight plus some underglow LED lights for special effects. My boys loved them. I also installed the Speed Limiter for two reasons; to slow the bike down for the kids plus to reduce the wear and tear on the motor. We smoked the stock 250w motor and replaced it with a 24V 350w motor so beef it up and with the power turned down slightly; the replacement motor was doing great.
@JorgensenEndurance idk he’s actually 9 and he’s like 60 pounds and I’m 30 190 and I sat on it and it gave me a nice little ride around the driveway so we’ll see tomorrow if he says this shits weak I’ll return it
You mean the lack of it? I had one as a little kid and all you had was the tires to cushion the ride.
I’m 15, I ride motocross, and bought one of these to toy around in since I can’t afford a pit bike. The stock bike is actually really fun, decent speed. I got one of these to upgrade, upgraded 48v battery, 1800w motor and a new controller, still waiting to be able to afford that stuff. Can’t wait to convert the bike tho!
Yup, the links to the full face helmet and the battery upgrade to lithium are in the description. Just expand the description of the video. You’ll want the double battery pack. It added a lot more distance and charge time is much faster. That’s the only upgrade we’ve done so far. I’m thinking in the spring I’ll try to get a bigger front wheel or see if I can fit one of the larger razor front forks to give this some suspension. If not switching the fork, I want to get just a little bit bigger front wheel so he can get over rough terrain a little better.
I got one of these for my little brother and I had no problem riding it and I' 6'0 actually pretty fun lol
@MapleBoarder78 never mind it’s broken it won’t drive when I twist the handle thingy thanks for the help though.
I ride the mx 350 its good for people that's little like me and its fast
It is faster than 15mph it gos 24mph I have the new version it like 36 mph its still the Razor mx350
There are 2 each, 12v batteries in series for a total of 24v. I upgraded our daughters to 10 amp batteries for way longer run time than the OEM 30 minutes. I've seen her put 6+ miles and an easy hour with no dead batteries. The OEM motor is a 350 watt brushed unit.
Backcountry Life I already bought a 350 and it fits and works great
Glad we could help. We have enjoyed ours and they are the perfect starter bike for kids. Once the get the hang of it you can move them to a gas powered dirt bike.
Backcountry Life I had the Mx350 Rocket back in 2015, and it would last me hours at a time. The most badass thing ever..to my middle school brain at the time lmao
Hi, got one for my 5 y/o 2 years ago. now hes 7. its built well, and is stil going strong. Just make sure you keep the battery charged and charge it per the directions. Its well worth the money. My advice....get a mtaching color helmet and gloves and your kid will be and feel like the coolest person ever. You can fit it in the back seat of a car easy ( make sure you seat belt it in incase you get into and accident) and no oil or gas dripping everywhere. I highly reccoment this product.
I went this route with my boy. I picked one up when he was 4 yrs old and he wanted nothing to do with it. It basically sat for a year and then one day he decided he wanted to ride it and that was it he was always wanting to ride , so I finally moved him up to a ttr 50 which he is doing great on. I gave the razor to the neighbor kids, and it’s still trucking.
Funny how many people are knocking that little razor talkin bout get a real one!! My 4yo started on that 250$ razor and learned a lot about being in the pegs, counter steering, proper leaning and balance, and any other safety skill i needed to teach him. All while at under 20 mph and silent not pissing off the neighbors. When he moved up to his honda crf 50 he was ready to be there. But go ahead and throw your child right on a 2500$ gas powered bike that can go 45 and try not to scare them off it for life in the process. Just remember when u were a kid would your smile be any smaller because your first motorcycle was electric?.. Just a thought. Hope yalls future's kick ass!
mine goes about 13 to 14 mph I weigh 110 pounds
Review videos
Razor Dirt Bike Review (MX125, MX350, MX/SX500, and MX650) - All Within One ViewMay 29, 2021 · YouTube ↗
Razor MX125 Dirt Rocket Electric-Powered Dirt Bike ReviewJul 23, 2023 · YouTube ↗
Razor MX350 Dirt Bike Full ReviewDec 25, 2020 · YouTube ↗
Razor MX350 Dirt Rocket Electric Motocross Bike ReviewDec 12, 2023 · YouTube ↗
Razor MX350 Dirt Rocket Long Term Review [Worth the Money?]Apr 14, 2020 · YouTube ↗
Razor MX350 Dirt Bike Review - 1 Year LaterMay 9, 2025 · YouTube ↗
