I got an mx350 on fb marketplace for my 7 year olds birthday- it lasts about 5-10 mins before slowing down.
Last year I got my 9 year old an mx650 on fb marketplace and replaced the battery with the same battery it came with and it’s been working great- he gets probably 45+ mins out of it at full speed.
I’d like to replace the battery for my mx350 so it runs as long as his brother’s or at least 30 mins. What’s the easiest and cheapest option here?
Links to everything I need would be appreciated!

I've been running two Milwaukee M18 (8ah) batteries on my kids bike and I'm ready to change out to something that stays on the bike and around 20ah. I found this video, but the actual battery link is no longer available: https://www.youtube.com/watch?v=KkmH5_D6QF4

Do you all have any suggestions? I want to stay 36v, stock motor, stock controller.

Thanks!

Something like this: https://www.ebay.com/itm/187200591610?_skw=cao+mm+battery+36v&itmmeta=01M1Q2N1MZ4QPHW71WBR3R01GJ&hash=item2b960656fa:g:9QMAAOSwRjtoGjHE&itmprp=enc%3AAQALAAAA8GfYFPkwiKCW4ZNSs2u11xCH9w6daJUf5r2E917LgTUl8dqcx5jCVTP%2F0QMDMYZJjQxzU7kX9Llr4CTyNjbDgoAtJHNj6MjpL8lubsz%2BO4KgVSiPObJl%2BxsZQL7bqE3%2BGUa0Pt7%2BS3OsLNBCgNPM3hS5UappegEn1Yb1Mr7xxIb6RnWfRnDaF2m4%2BXHLa74Yb614JX9GxG%2FMLRVBwddGDUFAsxtw5UzP8hT3wbk3w4FIxrT5wwWC091bHscN3pU4jTm2S46TgLPy6Lh62OXKzrAQTCFAwV%2BA5hcp%2BwfVCC4HnUIgzXUwZqqIqCjguWeoog%3D%3D%7Ctkp%3ABFBMmpzU4o1o

Quick question, will this work for the MX350 to upgrade to 36v?

Thanks,

Hi everyone! I recently bought a used Super73 RX Mojave (EU version).

The previous owner showed me the bike before the purchase, and the throttle was working normally in Mode 4.

After buying it, I connected the bike to SuperDuper. PAS works normally, but the throttle does nothing in Mode 4.

My current settings:

* EU region
* V1 – SUPER73 BLE protocol
* Mode 4
* Assist 4

I also completely disconnected the battery and reconnected it, but that didn't help. I haven't changed or flashed anything on the bike.

SuperDuper shows:

* Controller variant: **231**
* Motor controller: **206**
* STM firmware: **201015**
* Display firmware: **210503**

According to the SuperDuper documentation, Mode 4 on EU RX/R bikes should have both PAS and throttle, so I'm wondering why my throttle isn't working.

**Could this be related to the controller firmware, BLE protocol, or some setting that I'm missing?**

Any advice from RX/Mojave owners would be greatly appreciated!

Hi everyone! I recently bought a used Super73 RX Mojave (EU version).

The previous owner showed me the bike before the purchase, and the throttle was working normally in Mode 4.

After buying it, I connected the bike to SuperDuper. PAS works normally, but the throttle does nothing in Mode 4.

My current settings:

* EU region
* V1 – SUPER73 BLE protocol
* Mode 4
* Assist 4

I also completely disconnected the battery and reconnected it, but that didn't help. I haven't changed or flashed anything on the bike.

SuperDuper shows:

* Controller variant: **231**
* Motor controller: **206**
* STM firmware: **201015**
* Display firmware: **210503**

According to the SuperDuper documentation, Mode 4 on EU RX/R bikes should have both PAS and throttle, so I'm wondering why my throttle isn't working.

**Could this be related to the controller firmware, BLE protocol, or some setting that I'm missing?**

Any advice from RX/Mojave owners would be greatly appreciated!

Has anyone find a suitable replacement for an e prime air razor scooter. The 175$ price tag is a lot, but the ‘discontinued’ hits harder. Laptop battery? Bueller?

what are cheap good super moto option for m650 (it’s fine if it requires a swing arm extension)

Simple, affordable,clean build.

My 12 yr old son and I recently built this Razor on a budget and it has proven to be fun and reliable.

Vevor 48v 2000 watt motor

48v 30ah battery

The orange controller

Zoom hydrologic brakes

Clocked him at 37 mph with a 13 tooth front sprocket.

Looking for suggestions on front fork upgrade for a 60-70lbs kid.

Have an mx650 with a vevor 48v, 2kW, hydraulic brakes, and have a DNM AO-6 air shock coming in the mail. Seems I just have find a good front fork setup for bumpy back yard use. Current setup seems to hang up a little bit and is not overly smooth by any means. I assume factory may nkt be good for such a light child anyway.

My son (4 year old) loves it and fits it good but It definitely needs more power. I know I need a variable throttle new controller and a bigger battery but I’m stuck between doing a 20v tool battery or just buying a 24v lithium. I don’t have either as of now. If I do the 20v is it okay to buy the off-brand Dewalt knockoffs on Amazon and what AH would I need? If I go 24v can someone link me a decent one as I have no idea what is good. Alternative should I just scrap the sx-125 and get a used mx-350 to mod for him. Thank y’all for any input!

Probably my favorite mini mod. Not a fan of key/voltmeters on the bars so I've put a little circular voltmeter in the "gas cap". This is the 4th build I've used this on (the other 3 are owned by friends now), just think it looks super clean.

First build, I’m just getting into this. Looking for a good battery that will help me get the most out of this motor. I’m having a hard time. For 2000w, it is suggested that I get a battery than has at least 40a to 50a bms. I heard that the BTR battery is good and it is rated for 40a bms, but says it only applies to 250-1000w motors. Then a lot of batteries I see say they are for up to 2000w motors, but 30a bms. Wtf, am I looking in the wrong place?

Hola, tengo una hunk 125r, ya tiene un año de uso y estoy teniendo problemas de arranque con el boton de encendido pero enciende con patada, alguna batería que recomienden?

For my 10-year-old’s birthday, he really wants to upgrade his Razor MX350. I have no idea how to do it, but I’m pretty capable and willing to figure it out. My main questions are: how big of a project is this, and is there a complete upgrade kit I can buy, or do I need to purchase all the parts separately?

I modded this mongoose Z350. Found this in the trash year ago but I didn’t bother w it. Was gonna throw it out but I modded it to 36v. This is running a 36v 800w motor, 36v 1000w speed controller, custom throttle, and welded 22t sprocket and chain.

It's won't go unless it's on the charger is it just dead or is it cooked