jonescg's E-max 110s lithium conversion

General Discussion about large electric scooters and motorcycles and other things with no pedals.
whereswally606
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Re: jonescg's E-max 110s lithium conversion

Post by whereswally606 » Jul 22, 2016 7:21 am

did you ever get chance to get that DVT file off your scooter controller?
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Re: jonescg's E-max 110s lithium conversion

Post by jonescg » Jul 22, 2016 7:27 am

Nah, my friend has the laptop with the software and dongle-cord thingy. I might try and get him to email the file to me if possible.

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Re: jonescg's E-max 110s lithium conversion

Post by whereswally606 » Jul 23, 2016 2:56 am

Thanks jonescg

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Re: jonescg's E-max 110s lithium conversion

Post by jonescg » Jul 24, 2016 7:34 pm

I've PM'd you the dcf file. Hopefully you can upload the settings!

Cheers,
Chris

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Re: jonescg's E-max 110s lithium conversion

Post by whereswally606 » Jul 25, 2016 6:04 am

file received thanks Chris. Will be a while before I get any result with this but I have a plan.
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Re: jonescg's E-max 110s lithium conversion

Post by DarylMc » Jul 29, 2017 10:35 pm

Hi everyone
I just got a used VMoto 110S.
My first electric vehicle project.
Many thanks to Chris Jones for his help so far.

Thread is here
https://endless-sphere.com/forums/viewt ... 10&t=89788
Last edited by DarylMc on Jul 30, 2017 3:48 pm, edited 1 time in total.

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Re: jonescg's E-max 110s lithium conversion

Post by jonescg » Jul 30, 2017 2:28 am

Hi Daryl,
Might be easier to start your own thread; there's a few E-max 110S threads here now.

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Re: jonescg's E-max 110s lithium conversion

Post by DarylMc » Jul 30, 2017 3:48 pm

Thanks Chris
Done.

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Re: jonescg's E-max 110s lithium conversion

Post by jonescg » Sep 05, 2017 8:23 am

10,000 km and going strong. GBS LiFePO4 is pretty solid stuff for longevity.
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Re: jonescg's E-max 110s lithium conversion

Post by Rube » Sep 06, 2017 4:38 am

Cool rig, I've been looking at getting an electric scooter to replace the second car.
No idea about makes and models, I'll need to do a bit of research.

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Re: jonescg's E-max 110s lithium conversion

Post by DarylMc » Sep 06, 2017 7:07 am

Hello Rube
I bought an EMax recently with help from Chris.
I'm in Brisbane and I am thinking of selling it.
It has no batteries and I just don't think I have the time to get it all going.
You are welcome to come and have a look if you are interested.

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Re: jonescg's E-max 110s lithium conversion

Post by jonescg » Nov 06, 2017 4:00 am

So after 11,000 km the scooter suffered a failure.

My wife took the bike to work one morning and after about 1 km it suddenly felt very heavy and unresponsive to steer. She nursed it home and took the car. I had a look at it, suspecting a flat tyre but to my horror, the lower steering head bearing race was slopping around :shock:
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So it appears that the headstock was machined to accommodate the bearing race, but with about 2 mm of metal to hold it in place! I tried tightening it but it simply refused to stay put. After every ride up the road it would kick out, increasing the trail to the point where it was completely unresponsive to input. So I put a jack under the bike, lifted the front wheel up and gave the race a whack with a hammer. It seemed to be centrally located so the next step was to weld it up. I'm sure I accidentally welded the bearing race to the headstock, but whatever, I don't want it coming off again.
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Stick welding FTW.

Now it feels much better, but still less responsive than it used to be. I suspect it will just take some getting used to. If it still drives me nuts I can always pull the forks through the clamps and shorten the trail that way. Back on the road at least. Batteries are doing just fine.

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Re: jonescg's E-max 110s lithium conversion

Post by whereswally606 » Nov 06, 2017 4:22 am

:shock: wtf... will be a bit more wary when getting mine to go quicker now.
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Re: jonescg's E-max 110s lithium conversion

Post by DarylMc » Nov 06, 2017 4:30 am

Thanks for the tip Chris.
I might give mine a check and perhaps some loctite.

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Re: jonescg's E-max 110s lithium conversion

Post by jonescg » Nov 06, 2017 7:00 am

Yeah, if you guys don't mind checking, I'd love to see a photo of what it looks like when its not broken.
I'm trying to work out if it was just weak to begin with, or if it was just tacked in place with a couple of lousy welds...

Either way, it's certainly something you should keep an eye on. I suspect it was just poor design, and they never suspected that 90 kg fatties like me would ride it flat out everywhere I go, for 11,000+ km

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Re: jonescg's E-max 110s lithium conversion

Post by DarylMc » Nov 06, 2017 7:42 am

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Re: jonescg's E-max 110s lithium conversion

Post by DarylMc » Nov 06, 2017 7:43 am

I don't think you should be riding it like that Chris.
Do you reckon yours just had a cup inserted in the frame tube?
The cup and or the frame tube must be really flogged out if it moves enough to alter the fork angle.

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Re: jonescg's E-max 110s lithium conversion

Post by jonescg » Nov 06, 2017 6:28 pm

Yikes!
It's worse than flogged out, it broke off!
The welds will hold it in place for now. But yeah it sure seems like this bike won't get the 30,000 km I was hoping for.

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