RAZOR MX125 18V UPGRADE!

[tima]

This is awesome thanks mate. I think I’ll 3D print a Makita mount for it. Hopefully that works. Really appreciate the tip! The original is just too slow and runs out too fast!

[tima]

Mate, 3D printed a Makita mount. And it hauls ass! Prob twice as fast as the 12v. Motor heated up after a good hours riding. But my 4 year old and his cousin loved it. Thanks 👍

[Little-Hunter-Sweden]

Thanks, I just made a 18w DeWalt battery upgrade. Bike is much stronger now!

[mrgmc]

I've got a mx 500 36v ... i put 2, 20v to run 40v .... myself and my son weigh about 260 combined and just rode about 4 miles tonight together around town

[everydayafriday]

Just ordered two Rigid branded ones for my sons power wheels and razor 125 👍🏻

[paulholmes]

mate your a legend I got one of these while in lockdown lvl4 and same problem, can't wait to make mine a makita knock off bike now haha chur

[taj]

After watching this video, I did experiment with a variable power supply on my sons mx125. Basically 18V like this video is good, with no load did not pull much current(A), but I am sure with a 35-50lb kid will pull enough to possibly warm up the motor. 18V was the sweet spot for higher rpm anything below did not do much from stock speed. Yes I had stock control module and motor when doing this. I have not updated my sons bike yet, issue I see is no suspension can cause a kids back to get hurt if they go over bumps, so keeping it stock for now till I figure out how to build a suspension for rear.

[Logic_vs_VerbalShite]

I agree on 7 being too big. My 3 year old uses this and it's perfect

[davidtorckler]

I wired in my makita 18v after watching this but only got acouple of runs and it stopped working so now need to figure out what's gone wrong. Did go very well for the 2 runs we did get

[damianmrsic]

That's so good hoping my milwaukee one fits in nice too

[chocowhite-loqueras]

How long does that ryobi battery last riding ?

[chemicalart]

I did this except used DeWalt 20v battery. Burned the motor out in 4 hours.

[billy]

Just ordered the 20v dewalt adapter to do this. Does the bike do any better in grass? Ours cant make it through grass if their is any kind of incline. I figured this is worth a shot before trying a motor/controller upgrade.

[WadeMD]

Hey, I put in a Milwaukee adapter for my 18v. Rides much faster on concrete! But when on grass under a tougher load (with my son) the built in circuit breaker keeps popping and turning the red switch off. Have you had this problem? If so, how do I change to a higher breaker switch without changing the voltage?

[vincentwelshman]

Whats the battery life for u ? I havw a 20v on my sons and it last about 5 maybe 10 mins

[joeysmith]

Hey mate I just did this upgrade the same way you did, but I used a adapter from Amazon.

Is the bike still running without issues?

Do the ryobi battery's have low voltage protection?

Does the mx125 run the batteries so flat that it damages the battery?

Thanks in advance, my young fulla is over the moon with his new bike set up.

[Sadieslays.]

I tried this with my daughters mx125 but when you hit the throttle and let go of the throttle it doesn’t stop it just keeps going anyway to fix it I did it just like you did but the throttle stays full even when you let go

[hackermouse]

Hello bro, I wanted to ask that is it the stock speed of the bike in the beginning of the video or after you have upgraded it, also is it safe to upgrade and pls tell me which battery should be bought to upgrade it's speed

[janwawrzyniak]

Hey. Nice bike. Can u Tell me how tall is your kid?

[userasdf]

I have a Harbor fright Chicago electric battery laying around, any idea how can I install it?