How I built a 45 MPH electric pit bike // Razor MX650 72v Upgrade

[@jay.mcclou1056]

The guy playing the trumpet was such a beautiful scenery and a moment that was incomparable

[@ferdtheterd3897]

He's the main character we all strive to be

[@maxwellcarter7356]

And if they were flying around on petrol dirt bikes they would’ve ruined that moment

[@rockinplayer3854]

I play the trumpet

[@karbonkillershorts8551]

Is this street/sidewalk legal? Even if modified?

[@dj27nitro]

That was dope

[@wontonedits6166]

Razor is such an underrated company bc they encourage right to repair which the onewheel community is currently battling

[@Epheli.]

That’s why I personally will NEVER get a onewheel

[@congame11]

They Glue the Battery Connectors so its a pain in the ass to Replace

[@Virtual-caveman]

Yea, that’s not totally true. I used to have a razor electric scooter and they built it to make it basically impossible to repair by yourself, I had to literally take apart the back wheel just to re-inflate the back turw

[@Chris-xo2rq]

@@Virtual-caveman Deciding to build things while optimizing cost rather than ease of maintenance doesn't mean they don't support right to repair.

[@bpchongo-.-]

One wheels don’t seem fun to me they blow imo 😂

[@germandude8165]

This Video is like a ChrisFix Video, but with more Action.I like the way you Show and explain what you do.

[@benjaminbyers9897]

me too

[@emmetmcconnell5040]

Your video's always impress me but the cinematography on this one was immaculate great work on the recent videos!

[@BSwort]

Got my kit in yesterday and it’s way faster than this video shows! V2.1 is insanely good, I got the 72v with heat sink and key switch. Easily going 45 ~ 50 mph with plaid like acceleration

[@baileyforrester7]

I got the same!

[@fekd7885]

how long did it take to ship?

[@baileyforrester7]

Fekd 8 weeks.

[@BSwort]

@@fekd7885 I got mine in 8 weeks. Also if any update comes out for the kit your order gets updated, like in my case where I ordered version 2.0 and received the newest version 2.1 because there was an update.

[@juanescobar4790]

What kind of sprocket did u get /use

[@baileyforrester7]

Few months back I watched this & decided to get into it. These things rip. They’re so fun. If y’all wanna see how these do on the trails I just posted a video off-roading with it.

[@kylealarcon5840]

How many miles can you go tho

[@baileyforrester7]

@@kylealarcon5840 I rode about 20 miles the other day and had 66v leftover.

[@omohido9260]

@@baileyforrester7 U mean the battery or like thats all u can ride before it break

[@karbonkillershorts8551]

Is this street/sidewalk legal? Even if modified?

[@DoinEmDirty07]

​@karbonkillershorts8551 they are in some places but aren't in others modded or not. Best to just check your area bro. Hope that helps some at least lol

[@bjbernsteins9019]

First you make me buy the RSF650! Now your gonna make me by the MX650 too! When my wife gets mad, I’m blaming you! In all seriousness, great content, and love what you do! Your reviews and explanations are top notch! Keep up the great work!

[@codezalo5773]

Did you end up getting an mx? Regardless wanted to know alittle more of your experience!

[@dianavaldez5730]

Same

[@Mystxry]

really well put together video bro, loved all the shots, no music, really well done

[@thegentlemansmith5411]

I built a mx500, mx650 and rsf650 during the pandemic and had all the neighborhood kids jealous of my sons & daughters bike. Wish I had a dad like me growing up😆 cant wait to finish the video and see it on the street tires like endo style. Also I upgraded to a 12in gas shock from a mountain bike and it literally made it almost the size of a grom.

[@kashkash815]

Hey do you know if the kit in the video 72v will work for the mx 350? Or do you know the maximum speed I could get it to go or the biggest battery I can swap it out with, I want to do the same speed but with that body cause I’ve seen one on market place for 100

[@thegentlemansmith5411]

@@kashkash815 72v battery is huge for the 350 you would have to modify the battery holder, if you could sale that one and find a mx series it would be easier

[@ryanfaulkingham8908]

Finally!! I’ve been waiting for this video

[@imwiththebusiness]

I love that you go step for step. Helps us who are new to all this. I subscribed and can give you a kiss.

[@FuttBucker42069]

Looking at the wiring, I think it’s a Kelly controller 🤙🏻 if you like tweaking the settings, you can get a Bluetooth dongle for it.

[@imagee96]

Yo the shot with the dust cloud and rays of sun was sweet

[@germandude8165]

I love how your Outfits match your bikes

[@liammaris7639]

Just bought my kit now!!!! I’m super pumped to get it this summer. I’ve had the bike for a few years for my son and he’s now 13 and look for more speed. Great videos keep up the great work!

[@behindu0670]

Is the battery recommended or can I just use stock

[@liammaris7639]

You have to buy new. You need a 48 Volt or higher lithium ion battery for the motor work. I would recommend buying a 72 or 76 volt battery because it’s only a few hundred dollars more and you get a lot more power. Hoped it helped.

[@YharonJD]

This is what's great about electric. If you wanted this kind of power you would need a bike twice the size but with electric you can have lots of power in a smaller form factor. Personally I prefer a smaller bike so I hope to get one of these in the future.

[@Chris-xo2rq]

The RC community embraced electric over gas/nitro many years ago. It's just superior in every single way. The largest downside of electric (range) is less apparent with smaller vehicles so it makes sense that smaller vehicles will embrace it first while larger vehicles lag behind waiting for tech improvements. It should have progressed from RC to small recreational vehicles like these and then to full-size vehicles. I don't know why it seems to have skipped this middle step... electric motorcycles, quads, jet skis, etc are very viable.

[@karbonkillershorts8551]

Is this street/sidewalk legal? Even if modified?

[@dh_filip624]

my guy just builds everything, love IT!

[@DirkWinterLetsRide]

Best way to do it!

[@xtpqtz]

FINALLY!!! Been waiting for so long for this video

[@lukes-uf4bc]

The change from 650 to 5000 watts wow¡!💪🔥

[@LandonTheBugkid]

Coincidence the stock ass motor is 650 watts and the bike is a 650

[@ewenquiambao4498]

yooo Sur Ronster your back good to see you agian bro :D love your vids man :D

[@NiteJerk]

Daaaaaaaaaaaaaaaaaaaaaaaaaaamn, dude, that thing is siiiiiick. I want one now. I have the Razor Rambler 16. I'd love to have an upgrade kit for me as well. Awesome video, please, keep it up.

[@tmonster1498]

LETSSSS GOOOOO!!!! WE OUTSIDE!!! Love your content!!!

[@gahvinschulze7968]

This videos is literally first recommended on the internet if you look up a upgrade for a razor hella sick bros

[@Olivierd.s]

That's dope af! I can't wait for the content you're going to make with that thing.

[@DirkWinterLetsRide]

I need to get my hands on that thing and ride the moto tracks I have around here

[@raymondharris6599]

Since you already have a street moto, perhaps you should keep this 1 a permanent dirt mod. This way you can have the best of both worlds...🤙🏾🤙🏾🤙🏾

[@DirkWinterLetsRide]

I agree with that. My SurRon is full dirt but I was going to get another for road.

[@BW_Vlogs]

Agreed

[@kash1085]

Oh it’s here! Awesome, so fun watching your videos! I’ve been interested in making one, just looking for a reasonably priced bike.

[@DirkWinterLetsRide]

My mate found one in Australia. It’s like a unicorn

[@ryanjansevanrensburg3259]

how man this dude is my fav youtuber

[@creativemods]

Yo, I have been waiting for this video! You did an awesome job as always, can't wait for more mx650 videos!

[@DirkWinterLetsRide]

The new pitbike scene !?

[@mr.bubbles2925]

Nooooooo! You just made Razor MX prices go up! Hahaha love the vids :)

[@blakeneef]

I just bought a sx500 and bought all parts I needed from Amazon and eBay to upgrade. I upgraded the motor to a 48v, the battery, controller, throttle, put a 3 speed on, and handle bars as well as some other things and it’s totally different. It hauls ass now. Almost threw me off on accident the first time letting on the throttle and it was only on 1 speed😂

[@tune1398]

How much did the build cost? Im thinking about building one

[@blakeneef]

For just the main components: battery, motor, controller, throttle will run you about $369 w/o tax. The motor came as a package with the controller, throttle, and a 3 speed as well. However I swapped the throttle that it came with out for one that reads the current voltage output. It also has as a key to lock the throttle so it cannot be engaged without the key being in and turned. (Won’t get stolen). Make sure to buy the right battery and motor as these are probably the most essential parts to the bike.

[@breddy9282]

@@blakeneef ay bro can i get all the links?

[@mckenziewilliams2861]

@@breddy9282 you found any links?

[@blakeneef]

Got you. Motor & Controller: www.ebay.com/itm/313686499026?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=sCeCKiVgTUK&sssrc=2349624&ssuid=l6myjRtRTpy&var=&widget_ver=artemis&media=COPY Battery: www.ebay.com/itm/313583334028?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=g5mflop9thy&sssrc=2349624&ssuid=l6myjRtRTpy&var=612402596536&widget_ver=artemis&media=COPY Throttle L-faster 24V/36V/48V Electric... www.amazon.com/dp/B01HRM1RM8?ref=ppx_pop_mob_ap_share I just listed some of the parts that I bought and used. Motors brackets need to be cut off, and screw holes need to be drilled out on it a little to make the screws flush and recessed to the surface of motor to be mounted correctly. When installing electrical some wires will need to be spliced or pigtailed together. When using new motor you’ll need to take off the sprocket on it (reverse threaded, pain to take off) and put on the sprocket from the sx500. The new motors sprocket will be to big for original chain to fit which is why you need to do this. If you want to know any other parts I used I will provide links to them also✌️

[@nonameaj3792]

Ughhhhh thank you suronster I have been waiting for this vid for ever

[@longbeachhonda110]

LETS GOOOO!! Bike looks so sweet!

[@shaqalito8740]

14:36 not gonna lie, this was beautiful and peaceful at the same time. I would've sat next to him for a while, just to admire and listen. Idk why, it just feels like it would be right. It gave me peace only watching him.

[@goatgang4l582]

Let's gooo your the best you should give away the mini moto

[@Xxx-t8e]

It’s so helpful when surronster is showing us how to do everything so I don’t have to rewatch a 2 minute tutorial

[@DeanF]

Dude, the guys at Electro and Co. Rock, and they all ride well too. Love the vids brah!

[@tyharris78]

This is so dope and they even have better options now , I’m building one for spring/summer

[@117-Z3U5]

_sees all of the fasteners on the ground_ *anxiety intensifies*

[@markjmaxwell9819]

Awesome build almost looks factory. Any child or teenager would love this little rocket. 😎🇦🇺👍

[@dr.projectx5142]

Sweet build upgrade on thus awesome project man. Sweet ride.

[@markjmaxwell9819]

Nice build with everything looking almost factory with the upgraded performance about as much as the frame can take. I would be stoked with this bike if I was a kid. 🇦🇺😎👍

[@Srsnowflake]

Who is here in 2024

[@Agent47fan35]

Me

[@Rydershannon]

Me

[@michaelgilman9320]

Got my nephew one for Christmas

[@landrythrowsppl]

i watch his stuff too much

[@straittoaster82]

Me 😂

[@Kingjulian-]

Can’t wait when you hit one mil bc all the ogs are here right now

[@sm0kxy]

Where were you 3 years ago bro.

[@Nugget8264]

you are a amazing person I love watching your vid keep it up 😀

[@kencarsongoombaa]

That bike was painful off the rip when you got it😭 Nice build bro!

[@dustinfurman4045]

You’ve inspired so many people including me it’s crazy

[@doanythingguy]

YOU FINNALLY DID IT!!! THANK YOU!!!

[@Benlikesrazermx500]

Nice bike BUT those birds were crazy the disassemble part💀

[@easyheimer]

Sick build bro!

[@wintrs9161]

Last year I bought a used MX650. Did a 3000w motor kit. After I hooked everything up, the ECU shorted (fried itself). Was a sad experience after making it a 4 battery fully upgraded bike. Always make sure you get quality parts! (if you go cheap kit, it's very likely that the throttle won't work, or the controller will short out.)

[@LucyAbdullahFreedomAerial]

did you do the same kit or not

[@seanmorris1243]

Yess I've been waitn on this specific video

[@Fortlord-hf8yx]

I’ve been watching your videos for a while and I wanted to suggest that you should get the jetson bolt pro there about 350 dollars and I would to see you upgrade it

[@MistAtsiM]

Dude u have the #1 intro hit on KZbin

[@profutzer]

I have one built with the same kit...suspension freaking blows on this thing. Fortunately I also built a pit bike conversion with the qs 138 v3 kit from them and its insane. videos on my channel

[@DirkWinterLetsRide]

I have the ycf88e and that thing has sick suspension but is so slow. Be good to stick them together

[@eliteartz5829]

Whats the range on the razor in miles

[@sanderdahl9938]

keep it like a dirt bike it looks so cool

[@birthdaytreat1655]

Awesome video man!! I’ve been waiting for you to make one for the dirt bike model. Can you do one upgrading the Razor Dirt Quad 500?! I would love to ride with my sons.

[@michaelhoffman9573]

I saw a 7kw one on youtube looked like a blast

[@SigmaLolzzz]

0:40 is it just me vibing when this banger comes on

[@Todd_G_FPV]

Please do a razor ground force drifter next! Get an extra set of front wheels and pop the bearings out and they fit right on the back with a couple extra washers if u want to take corners Hella fast! Handling is improved big time doing that and welding bicycle handlebars to the stock ones! Ask me how I know lol

[@lou2be247]

how do you know?

[@EliteZ06]

I did a drifter with a 3kW setup and it goes 40mph but also did a Dune buggy which goes 30mph but is way more fun because it handles amazingly. Also have real kart wheels and slicks on the Dune.

[@Todd_G_FPV]

@@EliteZ06 any videos? I been trying to find the dune buggy but after covid they shot up I'm price for used ones but when I got my kart they had a broken dune that I should of got but money was tight at the time

[@Todd_G_FPV]

@@EliteZ06 is it 3kw 48v or higher voltage? I'm pretty happy with mine I purchased a set of front wheels and put one on the back for grip and left one drift wheel, it's perfect to slide around corners now!

[@EliteZ06]

@@Todd_G_FPV I have tons of video of my build I just haven’t done the editing. Here is a quick pass: kzbin.info/www/bejne/mZuznKOeja5-f80 Slow it down and notice the custom wheels. Those were the hardest part to get right but they’re amazing.

[@mikeray353]

You make the best video, bar none! Learning from you so I can upgrade my kids bike. Thanks!!

[@batboldbuyandelger278]

i love your videos

[@budwhite9781]

Now that is a pocket rocket. There will be whole races and clubs full of these modified Razors shortly. Cheers.

[@darkstarhobbies4581]

Hi, i hope u see this, I'm a kid and I rely reaky want to build one of these, but I have a budget of £350, so please can you do a budget builds series soon, love you vids dude 😁😁

[@k1ortia]

Great build, almost as small as a Sur Ron

[@jackmcdermott294]

Waiting for this video

[@x3Linc]

HELL YEAH!! 🔥🔥👌

[@joetheweathermanz]

Hey Sur Ronster! I really want to try this myself. I have no experience in building electric bikes. I think it would be a cool/fun learning experience. Is there a manual that comes with this certain upgrade? Is it easy to follow? Would someone with no experience be able to build one there self?

[@youngab7213]

Good question

[@ultagamer21xstudios19]

you should do this to one of razor's quads!

[@umerchoudhry6016]

Yo i was waiting for this vid for such a long time lets go!!!!

[@froggo1088]

How long did the battery last after you upgraded it? Was it the same 40 minutes?

[@qarsynn]

2-4 hours

[@ogsurrom]

I been sub to you since 20 k subs , love you vids man

[@djdubz]

sick conversion. about how many miles do you get with this set up?

[@cali4niakiddd408gilroy]

Thank you so much I watched when you unboxed it and I couldn’t find the video and here it is

[@Sethfuller13]

How long do they last on a full charge ? And how long does it take to charge?

[@13Daisys]

This is what i wanna know

[@daneildo6152]

Let’s go the vid that I was waiting for! SUPER DOPE

[@kojjohn]

Which mini bike do you like the best ?

[@EwokXD]

FINALLY ITS ABOUT TIME

[@vincetheveganprince]

LFG!! ⚡⚡⚡

[@knsvisuals6832]

Finally you don’t know how long I been waiting for this video 😂😭

[@simple6786]

What kind of hydro brakes are you running?

[@Battshimself]

My kit is showing up today! My new tired are running late so that will be next weekend. So stoked!

[@GT2SpotsCars]

Where did u buy

[@Hudson12339]

I need to build something like this

[@gbsavc]

Awesome job thank you. Only issue is this kit costs $1,000-$1,500. No way to justify getting this over a gas bike…not even close.

[@pitgroove.37_66]

Now the next thing you should upgrade is the handlebars, because those cheap bars on the razor are not going to last long if you happen to crash and break them. Also where did you get the upgraded rear shock?

[@Lilsavagefr]

Currently plan on selling my Baja Storm 125cc 4-wheeler and My Mini-Moto 80cc mini bike to try and buy one of these and get it fully kit'ed out. Thanks @Sur Ronster for the inspiration!

[@VoltronWatts]

Good luck broski. 👍 I started a channel for the razor bros getting into this hobby. 👍👊

[@lilnoble9202]

Yo love your vids, but had a quick question. On mx650 like this one can you just change the motor to a 2000w and not change anything else like the battery and controller and leave it stock?

[@DirkWinterLetsRide]

Hit up @antssta he is doing one up too 🤙🏽

[@lilnoble9202]

@@DirkWinterLetsRide thanks

[@miguel360kmc]

👎 no. Dont see how that would even work. Leaving the battery sure thats doable but you only getting like 4 miles range. The controller its specifically programed for one motor at a set power point. Doubt it would work at all but if it did it would work as if it was still the stock motor

[@devins1495]

Popular razor 650mod adding a battery to turn it up from 36v to 48v the controller and motor will only support it for so long tho then people upgrade everything from there but that extra battery I hear will give extra range stock is like 6miles so maybe you'll get 8 and push you into the 20mph speed range

[@freakenstein1984]

What spacers do you need to fit the rsf650 tires on it and were are you getting them from

[@dylinsoraghan]

You can make ur own

[@dboys2169]

You are super cool when it’s my birthday I’ll save up money to get a razor Mx 650 or Mx 500 and get the same kit . You inspire me to have a job like this

[@2v_Kevn]

Noti squad

[@jwdzaragoza]

Subbed because that trail brings back memories. Thank you for that 👍

[@bigtae2261]

How long do it stay charge ?

[@ferminatr]

2-4 hours if you get the 72v kit

[@MrJasenstewart97]

I just got my new motor for my new mongoose cx24v450 and im super hype for it! It was super easy to get it mounted on the stock motor bracket, had to grind a little bit off the bracket to get the motor to sit flat, grind the bolt holes on the bottom into slots so i could line up the chain and remove an alignment plate but all that barley took me 25-30min and i had the motor on the bike, now i just gotta get a battery and controller for this bike and itll be ready

[@davidurosevic9013]

I love you so much

[@jarhencorpus8183]

I just clicked this vid now I’m in love with this channel

[@noce1071]

I put a suspension upgrade kit on my Mx650. The seat height is now 28.5 inches , started at 24 inches. Check out Dylan Hughes, suspension upgrade video . He is who I got my kit from .

[@nikos_gamer3337]

16:14 i bet that gtr driver didnt know whats going on

[@Mr.drift23877]

Whose here in 2025

[@alejandroaguirre7635]

Meee

[@DavidSantos-f5q]

Me lol

[@breadboi8008]

Im just amazed how he remembers where to put a specific nuts, bolts and screws on a Specific part of the bike

[@cylobtw8588]

Turn to Jesus Christ everyone amen

[@Holden-w1m]

This is a realy random comment I thought but I respect it and you as a man of god it great some time are tuff but there meant to be amen

[@RandomPosts120]

@@Holden-w1mit’s never a bad time to spread the good word, even if it seems kinda random

[@Metablica]

Amen

[@Carhub55939]

Yes sir

[@angryrapt0r]

go away christian basher im tryna watch a dirt bike video

[@carrizalesjl95]

Who’s here in 2025?

[@MINIbike_NY]

Me 😊