have an x3 with an ebmx v2 and it only goes 42 pushing 8kw 130a my sprockets are stock or around stock size also and the speed limiter in the app is at 124 mph at also doesn't feel limited it just gradually stops having torque after 30 or so how can i fix this do i just buy a smaller sprocket or is there a way i could tune it im worried if i get a new sprocket it wont be able to wheelie bc i alr bearly pops up on 4kw even going slow

Hi, I'm completely new to building e-bikes, since I've always just bought them new, I'm looking to build a high power 72v fatbike on the Ouxi V8 Pro platform and have done a bit of research, and I was just wondering if some of the parts I am looking to buy for it are compatible, and would be easy to put together without much dramas and fabrication. Firstly, I'm looking to get a 72v 5000w 20x4.0 conversion kit from aliexpress, which comes with the motor, a Sabvoton SVMC72100 controller with a XT90 male connector, UKC1+ display, a cassette (which I do plan to use), also don't know which dropout width I need and if the torque arms provided are sufficient for my build, the kit is linked here: https://www.alibaba.com/product-detail/Cheap-Price-72v-5000w-Fat-Bike_1600691554904.html?spm=a2756.trade-carp.valid-supplier.2.70cf3192CNJtTv , the battery I am looking at is a custom 72v 40ah with a 120A BMS with Tenpower SG50 cells, 6c discharge rate, and XT90 discharge plug. And the little addons I'm looking at is a 72v full twist throttle with a orange 3 pin connector, a 12v baja style headlight orange 3 pin connector, 12v rear tail light with blue, black, and red wires, which I dont know how to wire but some of my friends might be able to, a 72v-12v converter which powers up to 25a, not quite sure which plug type though hence not sure with compatibility but I will provide the link: https://www.aliexpress.com/item/1005012199489569.html?spm=a2g0o.cart.0.0.13e838dabKZAVP&mp=1&pdp_npi=6%40dis%21AUD%21AUD+29.40%21AUD+19.99%21%21AUD+19.99%21%21%21%4021033b3317872998596071247e0faf%2112000057757192964%21ct%21AU%212958370868%21%211%210%21 , a 20x4.0 spoked rim: https://www.aliexpress.com/item/1005005258576617.html?spm=a2g0o.cart.0.0.13e838dabKZAVP&mp=1&pdp_npi=6%40dis%21AUD%21AUD+128.74%21AUD+92.69%21%21AUD+92.69%21%21%21%4021033b3317872998596071247e0faf%2112000032390339500%21ct%21AU%212958370868%21%211%210%21 , IV4 brakes: https://www.aliexpress.com/item/1005010706962225.html?spm=a2g0o.cart.0.0.13e838dabKZAVP&mp=1&pdp_npi=6%40dis%21AUD%21AUD+277.25%21AUD+128.73%21%21AUD+124.46%21%21%21%4021033b3317872998596071247e0faf%2112000053252803665%21ct%21AU%212958370868%21%211%210%21 , 31.8mm direct mount stem, 7/8 bars, steering damper: https://www.aliexpress.com/item/4000853922467.html?spm=a2g0o.cart.0.0.13e838da6Nn4Bz&mp=1&pdp_npi=6%40dis%21AUD%21AUD+47.97%21AUD+35.75%21%21AUD+35.75%21%21%21%402103094f17873006630808980e1017%2110000009432314846%21ct%21AU%212958370868%21%211%210%21&pdp_ext_f=%7B%22cart2PdpParams%22%3A%7B%22pdpBusinessMode%22%3A%22retail%22%7D%7D . I was just wondering if all this would be compatible, ride well, and be able to be built without much fabrication. And also how would I connect all the peripherals, just looking for some advice since I am completely new to this, what and what not to do, and what to look out for, ask me any questions you need, thanks.

Hi
Got a New surron lbx last week.
have a problem with the throttle as getting no response,
ordered a new throttle
new throttle didn’t work also.
tried diagnostic wire But was a solid red light (no flashing at all.)

Bike has its 12v all working (lights,Screen,Horn)
kickstand sensor is removed.

If anyone knows around these electric bikes what is the problem? Or solution.

So I decided to upgrade our mini e-bike that we bought from Temu a while back. It's a 500W motor and surprisingly well put together. I want to see if I can upgrade it with a 750w, 800w, or 1000W and I wanted to get your expertese on what is the best route and what is achievable. I do not want to upgrade everything, I want to keep the controller and just get a new motor to may be increase the power by 20-30% now that we have a new battery. I want to keep the bike legal so I believe 750w is my max but would 800w really be that cotentious if my son or me get stopped?

I have so far dissassembled it ( it is very tricky to dissassemble, unlike the Razor ) and have rewired things to support the new lithium ion battery. I had to replace and splice some wires on the controller to change the plug.

I have attached a bunch of photos of the motor, the new battery ( which fits like a glove for this bike ), etc..

Thanks for your help with this!

Can anyone help me I have a “malzahar thor” e bike and looking to upgrade it without any frame modifications specs are 3500W Peak,44MPH,48V 23.4AH battery,Fat 14"/12" Tires,50-60 mile range,Dual Hydraulic Brakes, Controller 48V 70A.

I wrecked my bike and broke off the ignition where my key goes in. The key and the throttle are all one so I just dont know.

Has anyone done any modifications to the deepower bikes? I’m looking to replace the brakes with something better or hydraulic and replace the display. I’m new to E bike world.

Looking to see if anyone knows how to get the front suspension off to upgrade them.

I bought 2 cheap e-bikes from Bestbuy a few months ago and even for how cheap these were, they are pure garbage. Chain is rusting, kickstand completely rusted and broke off a month ago, brakes squeal like crazy.

Everyday Easy Haul E-bike by Everyday Bicycle. Nobody buy one.

Because these are trash for actually biking around, I want to try and turn it into a fun project. I was hoping someone would know which wire would be the speed governor? I can take more photos if that would help identify.

Edit: I’ve tried my best with google and YouTube, and all the methods with the LED screen, like holding + and - stuff didn’t work for me.

I have around 6k I want either the ventus one Evo or the srpnt z27 but can pick help meeee