Another Stealth bomber (clone) build

General Discussion about electric bicycles.
Dung   10 mW

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Re: Another Stealth bomber (clone) build

Post by Dung » Jan 25 2020 7:12pm

Hi shortcircuit911

It's been long time since and I feel sorry for what happen to your bike and hope you will be back with your bike. I ordred the DNM USD 8 for ½ years ago at EM3EV but didnt have time to assemble it. Now I'm starting to assemble the forks on it, but it looks so wrong. Just checked it again and yes 2 different tube size. Mine has this tube size https://www.amazon.com/DNM-USD-8-Downhi ... B01BIQN1LY

and at the EM3EV : https://em3ev.com/shop/dnm-usd-8-front- ... dual-disc/

Some more pictures: Image
Image

Can I change the tube?

This guy also bought his forks at EM3EV. viewtopic.php?f=6&t=99526
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markz   100 GW

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Location: Alberta Canada

Re: Another Stealth bomber (clone) build

Post by markz » Jan 25 2020 8:48pm

You can get adapters to make taper fork tube fit on your bicycles headtube. It changes the dynamics of the fork, making the front a tad taller.

ossivirt   10 W

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Re: Another Stealth bomber (clone) build

Post by ossivirt » Jan 26 2020 4:05am

Dung wrote:
Jan 25 2020 7:12pm
Hi shortcircuit911

It's been long time since and I feel sorry for what happen to your bike and hope you will be back with your bike. I ordred the DNM USD 8 for ½ years ago at EM3EV but didnt have time to assemble it. Now I'm starting to assemble the forks on it, but it looks so wrong. Just checked it again and yes 2 different tube size. Mine has this tube size https://www.amazon.com/DNM-USD-8-Downhi ... B01BIQN1LY

and at the EM3EV : https://em3ev.com/shop/dnm-usd-8-front- ... dual-disc/


Some more pictures: Image
Image

Can I change the tube?

This guy also bought his forks at EM3EV. viewtopic.php?f=6&t=99526
Seems like you have that "Electric enduro" frame. It comes with hardware to install normal style or tapered forks. At least mine did Come with both.

Dung   10 mW

10 mW
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Joined: Feb 25 2019 5:17pm

Re: Another Stealth bomber (clone) build

Post by Dung » Jan 26 2020 4:42am

I just wonder why they we have 2 tube version of that forks. But in their website under the Description it says: Steerer tube: 28.6 mm (1.13 inch) AL-7075. Now they have chinese new year have to wait 2 weeks more to contact them, how they can help me.

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shortcircuit911   1 kW

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Joined: Feb 19 2010 1:24pm
Location: Antioch, CA

Re: Another Stealth bomber (clone) build

Post by shortcircuit911 » Feb 07 2020 1:12am

Dung good luck with it all, let us know how it goes.

Well I took my kid riding this past weekend. We took the razor and burromax along with my cr125. Had a super fun time and probably the last time I'll ride the cr with a gas motor. More on that later.

I also just got the wheel back from the bike shop which looks pretty sweet! I quickly mocked it up on the bike and see a bunch of little tweaks I need to do. I'm going to start chipping away at it and see what I can come up with. I'm pretty close to being blocked by not having the motor. I'm a little over half way there budgeting money for the motor and chain from lightning rod's. Here's some pics, be back with more.
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John in CR   100 GW

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Re: Another Stealth bomber (clone) build

Post by John in CR » Feb 11 2020 2:30am

With the kind of riding you guys are doing, to gotta mount hubmotor flats vertically for more strength, and never ignore the obvious sounds of play in the axle during regen. A more modern controller with variable regen will help too, so you don't get that initial big hit on the system when you engage regen.

On the build immediately above, how about a drawing on the pic of where you plan to mount the mid-motor? It sure looks like you're short on space, and below the swingarm seems like it will have clearance issues based on the pic a few pages back landing a jump and the suspension going to full or almost full compression.

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shortcircuit911   1 kW

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Location: Antioch, CA

Re: Another Stealth bomber (clone) build

Post by shortcircuit911 » Feb 11 2020 3:25pm

Hey John, that's a damn good idea, wish I thought of that. I've seen a few swingarms on here (vector maybe) that have vertical slots, those guys will probably have much better luck.

So as far as the build, the current plan is to get the big block and mount it under the swingarm. I would love to mount the motor on top of the swingarm, or like the cyclone kit so that there is more ground clearance, but that's a lot of work (not out of the question though). I'd like to ride the bike with the motor on the bottom and see how annoying it is. If I can live with it I'll leave it, if not I'll either make another swingarm, or build another bike from scratch. Sometimes it's easier to just start over.

Still collecting cans for that big block, hopefully soon.

John in CR   100 GW

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Re: Another Stealth bomber (clone) build

Post by John in CR » Feb 12 2020 8:14pm

"Big Block" always makes me laugh when I see it here on ES, so thanks for my chuckle of the day. I'll have a mid-drive ebike rolling within 2 months as long as the coronavirus doesn't reach up a bite me regarding a part absolutely necessary to the build. If those little outrunners are Big Blocks, mine will have a more silent and far higher power Gargantuan Block. I have motors and batteries, and just got my dual Thermo Nucular 24Fs Monday, so it shouldn't impact me, but who knows. I went to the pharmacy today to pick up medicine that is manufactured in this country, and was told it would be 2-3 months before they get any in due to the virus. Apparently one of the ingredients comes from China. My other 6 Nucular 12F's are also delayed due to the virus despite being designed and built in Russia. They use some Chinese parts too.

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efMX Trials Electric Freeride   1 MW

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Re: Another Stealth bomber (clone) build

Post by efMX Trials Electric Freeride » Feb 12 2020 9:26pm

"hub monster" always makes me chuckle lol.. and ppl dieing inconveniences my bike parts :?
some ride & sk8 videos:
metacafe.com/channels/NATAS666DAMIEN
http://www.youtube.com/natas666damien
i have nothing for sale.. :)

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shortcircuit911   1 kW

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Re: Another Stealth bomber (clone) build

Post by shortcircuit911 » Feb 13 2020 1:14am

John glad you got a chuckle, don't die and post a video of the build. Didn't know we were competing but I'd be happy to race in an off-road setting, let me know if you're ever in Cali.


@efMX that second line lmao, thanks for the chuckle :lol:

Luckily the parts I need to get my bike going are just up in Oregon, only a matter of cash and some more fab work for me.

I changed my mind yet again and decided to ditch the bmx freewheel and put the drive sprocket on the right side to clean things up. There were some clearance issues that I didn't want to deal with so I decided to go with this configuration. I'll like;y end up making another swingarm (something like the emoto) if the ride is unbearable. I'll likely keep the pedals and ghost pedal if I'm at the mtb trails or on the street. I'm cutting and machining the last few pieces to button up the rear, this includes a caliper mount, chain adjusters, and finish welding everything up before powdercoating. Like John, I'm probably 2-3 months away from getting this thing back in the dirt.
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Muney   1 µW

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Re: Another Stealth bomber (clone) build

Post by Muney » Mar 14 2020 1:11am

any progress on this ? to me it looks like the motor will be hitting the front of the rear tire?
an exciting build if you can pull this off..this motor QS 138 is a beast !
am wondering out aloud here, are there longer swing arms available for this frame?? it might be the solution

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shortcircuit911   1 kW

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Re: Another Stealth bomber (clone) build

Post by shortcircuit911 » Mar 18 2020 2:20pm

Hey Muney, not much progress other than saving some money every paycheck for the new motor. I'm not sure if you saw above, but I've abandoned the idea of the qs138 motor because it's simply too large. The new plan is to go with Lightning Rod's new ipm big block. The last 2 things I need are the motor kit and chain which I hope to have within the next month or so. The big block paired with my mobipus controller should make this thing rip! I've been dying to ride lately so I've been putting lots of time into my razor mx350 (lipo pack, brushless setup, gearing) because it's a waiting game for the eeb at this point.

Stay safe out there everyone, cray times.

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