How to Build a DIY Electric Mini Bike - 7,000W INSANE E-BIKE

The cost of this build is $1300

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PARTS LIST:

[giovanyirizarry]

YouTube is getting way too comfortable showing two adds before each video

[black.g]

now!!this is the way u teach people to build something..u tell them evry single thing, he even said where he got d frames. nice one bro..

[matthewf]

You have to pre load the rear brake. Apply the brake by hand, pull the cable tight and tighten down the screw. The rear adjustment screw can be screwed in to relax the preload on the brake. It should drag very slightly. The hand control can be adjusted too, screw it out to tighten the cable sleeve/cable.

[mriguy]

A few ideas. Harbor Freight sells a small angle grinder for $17 that will work way better than a dremel for cutting metal. Lok Tite is your friend, especially for the motor mounts. The weak point of this bike is the foot peg mount--too easy to stand up on the pegs and bend them sidways. Better to mount a pipe sideways across the front of the frame and affix fold up footpegs to it. You might think about adding another support to the motor mount, from the L bracket to the 'floor' but forward of the motor location.

[ification]

Usually I watch a tutorial on 2x because everyone waste my time, but this right here has important information every second of the video. No time wasted and perfect imagery, that you. 👌

[mapquestHs]

Nice build! Great idea to electrify a vintage style mini bike! I just built a crazy fast razor e-300 scooter using that same 80-100 motor. Just wanted to share the way I mounted my motor, I think it would work perfect for your application. I used the motor case off a stock cheapo 250 watt motor that comes on almost all the cheap electric scooters. I just hollowed it out, broke off the magnets and welded two flat pieces of metal across the front of the case where the 80-100 motor mount holes go. It’s a super strong and clean way to do it. It also adds the added benefit of having a little extra protection for the outrunner because it adds a ring around the motor. It leaves the perfect gap around the motor so it still cools plenty good. Thanks for the info on your video! I learned that I have more options for decent vescs. I’m running the Flipsky 6.6, so far so good but good to know there are other options if this one bails on me.

[johnnybravo]

Just a tip, put the nut on the axle as you hit it with the hammer. It will prevent any thread damage and wider surface to hit if you have terrible aim lol

[TaylorMadejdm]

Try lowering the tire pressure a little when you're riding it off road and it will be much more bearable... 🍺👍

[whyldthing]

To make the brake work better, add a flat washer with a small inside hole in between the springs and the adjuster through bolt (7:46). This will stop the springs from pushing on the adjuster bolt.

[planb]

You guys brought back some memories for me when i was a kid.And your elec motor looks like the same amount of power as i had with a lawn mower engine.Great seeing u kids getting out there doing stuff

[chriswhite]

Good job guys, yall should 1. Buy a grinder
2. Buy a cheap welder even a stick welder would work.

[TN-kdju]

To make your break work losen the screw holding the wire at the brake assembly and pull out all the slack of the wire to the point that the break shoes touches the drum. Then you can tune the break with the adjustment nut. Nice build

[NeillWylie]

I absolutely love the simple frame design.

[phmiii]

You forgot to place the inner spacer between the bearings on both wheels.

[katierichardson]

I’m planing on putting a golf cart engine in a power wheels with suspension

[databanks]

Quick tip for getting the mount holes marked - rub a tiny bit of grease on your finger then use it to get the front of the motor dirty (not a lot). Then after you wash your hands, rub a blank sheet of paper over the front of the motor (with a hole for the shaft, naturally). Presto, the grease makes a template on the paper that you can use on your brackets.
I've seen that trick used countless times on videos of people building frames for vehicles so they could fit all sorts of motors, both electric and petrol/gasoline. Works a treat.
Not sure why the manual/cable brake system is giving you trouble - from what I saw you seemed to be doing the cables correctly. But I'm used to mountain bikes with V brakes, not drum. So I could be missing something. It's much the same as the clutch on those little 50cc engines for bikes that were popular here in Australia until they were reclassified as motorcycles and needed license & rego (but they won't pass inspection - cheaters way to ban a fun hobby and mode of transportation)

[derekblack]

Great video, little tip* if you use engine coolant when drilling through steel.. difference is night/day. Fantastic job on the video

[turbochardged]

To install breaks, install all the hardware. screw in adjusters on the handle and wheel. now pull the cable tight at the cable lock, tighten the lock. Now unscrew the wheel adjuster (stretching the cable) until you feel drag spinning the wheel. Then screw it back in 2 turns. Now if you need fine-tuning, you can do it with the hand control.

[agkracing]

Great video! I really appreciate the detail you went into on the electronics. Look forward to the improvements and updates.

[charleshammond]

Nice build! Throw those drill bits away and get you some good bits, you’ll be amazed at the difference!!