Upgrade ANY 250W ebike ...SERIOUS POWER GAINS!!!

What happens if you connect a HUGE 52v 1040 watt hour battery, to a FEEBLE 250w hub motor???

*****!DO NOT TRY THIS AT HOME!*****

BIKES FOR SALE

DONATE TO SUPPORT THE CHANNEL

BUSINESS ENQUIRIES

[smartnothard]

That look on his face at 10 minutes or so. I almost felt the dads pride you felt! He was happy for sure!! Well done dad!!!!

[corykayhoe]

Well done, the smile on your son's face says it all .

[XavierBetoN]

Hi dude! I'm an electrical engineer that came across a lot of motor controllers.
The capacitors they use are usually 55V capable, It won't have any problem on the most 48V controllers if you slightly overvolt it.
Mainly motors only have windings and a hall sensor, which should be alright uptil 90V's. It's gonna take all the load until it reaches 85°C. It's the controller you'd want to keep an eye at. That it might pop up!
Gread video! Cheers!

*Healthy advice: You should use pedal assist on front wheel to have an AWD bike and burn dem cals fo good!

*Also your tires have very high rolling resistance for a road like that

[anthonytilling]

Epic stuff dude, loved seeing lewis with that grin! Good on ya mate!:)

[chrisliddiard]

great experiment, it means most of us on 36v could make that step-up to 48v with a battery and controller swap-out. You might want to try that gps app in a car just to see if the car speed lines up with the app. Thanks for sharing.

[Victor-rbt]

Watch out for the front dropouts failure! With the same power unit I was a bit over sharp with the thumb throttle on a standing start and the wheel torque snapped the dropout section clean off the forks! 2 torque releivers and new MTB forks fitted all is now good.
Good luck...

[jamie-meanskunk]

Will definitely 100% work as your Over volting it will make it go much faster but the hub wheel might get a little warm/hot 😂

[billienomates]

What more confirmation of a job well done from your son than that smile, Pukka mate.

[dastardlyman]

you can drill the sides of the hub motors so they cool properly. direct drive hub motors can be majorly overdriven if you cool them. grin technologies cover this in great detail on their youtube. i have two crazy ebikes with drilled direct drive hub motors they never over heat. if you overheat the hub motor it will break .

[vincentchapman]

It looked like he got all his Christmas at once with the smile he had. Well done for the great work you done on his bike. Keep the good work up .

[RayHenry]

Great inspiring Upgrade. I’ve a cheap 24v 250w folder and have gone for changing the front hub to 350w and 36v battery not so much for extra speed but extract torque. I was to chicken to do what you’ve done. I’ve now been inspired to upgrade to 48v on the 350v as the next upgrade.

[ashpunting]

Well Lewis is smiling and like always say to my Son as long as your happy I'm happy so the battery upgrade is a success 🙌 👌

[smithmiesterman]

hi mate, in relation to the speedo being wrong check how many magnets the speed sensor has on the the front hub motor and then see if theres any settings option on the display to match it (it may say magnets or poles on the display) because that will deffo put your speedo out ;)

[alcurtis]

You need to setup the kt controller properly to set how many magnet poles are in the hub for the speed. I wouldn't say this was a particularly long lasting setup with no torque arm and the planetary gears will get shagged in no time

[carlossmith]

So nothing as burn up is it still riding because if so I’m gonna do the same I have a 250 watt hub and been wanting to do this ?

[mirage]

Fun video, thanks, It's about time motor manufacturers stated putting some sort of temperature sensing in their motors, just a thermocouple would be nice.

[KM-wltp]

Excellent. Your son obviously loved it

[katiekumcgil]

ive run a sabvoton svmc7245 with 250watt bafang hub motor thats 72 volt 82 nominal with 50 amp speed was up around the 65 to 70 kms phr

[DASell-uzxg]

How did the bike hold up? Does it still work?

[NS_DAD]

Just my opinion, do what you like with it. When you overvolt a motor, it definitely wil deliver more until that fateful day when it gets too hot and burns up on you. However, if you dont hold the throttle open too long or too often, you might get away with this for a very long time. I once overvolted a 24v motor to 40v. It lasted 6000 kms. Unfortunately, I got so acustomed to it working well, I absent mindedly ran it into a wind for an hour and cooked the motor.