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by neptronix
Nov 07 2019 4:57pm
Forum: E-Bike General Discussion
Topic: New 1000w Geared hub MXUS XFC19
Replies: 22
Views: 1474

Re: New 1000w Geared hub MXUS XFC19

it's a lot more expensive, yeah. But you get what you pay for.

I guess it depends on your priorities. This is a cheap motor.. but i was thinking maybe there'd be something impressive about it.
by neptronix
Nov 07 2019 4:03pm
Forum: E-Bike General Discussion
Topic: New 1000w Geared hub MXUS XFC19
Replies: 22
Views: 1474

Re: New 1000w Geared hub MXUS XFC19

140mm dropout and 6 speed freewheel? that's bizarre.

Quite heavy compared to a MAC. If it's capable of more power than a MAC, cool. If not, eh...
by neptronix
Nov 07 2019 1:36pm
Forum: Battery Technology
Topic: Li-ion cells cycle ageing
Replies: 337
Views: 30324

Re: Li-ion cells cycle ageing

I appreciate comments like that, thanks :)

Enjoy!
by neptronix
Nov 07 2019 12:22pm
Forum: Battery Technology
Topic: Li-ion cells cycle ageing
Replies: 337
Views: 30324

Re: Li-ion cells cycle ageing

I do realize that this is one of the , if not THE go to forum for anything battery powered , but still the level of knowledge funneled in here is sometimes very humbling. Are most of you electrical engineers or industrial electricians? This forum is a mixture of electrical engineers, mechanical eng...
by neptronix
Nov 07 2019 12:16pm
Forum: Forum Rules and Features
Topic: Forum going down for maintenance today
Replies: 28
Views: 4441

Re: Forum going down for maintenance today

Yes, unfortunately.

Seems like everything is smooth sailing since the upgrade. Imma take this off the global announcement.
by neptronix
Nov 07 2019 12:15pm
Forum: Battery Technology
Topic: Li-ion cells cycle ageing
Replies: 337
Views: 30324

Re: Li-ion cells cycle ageing

eMark, we've received a lot of moderation reports about your posts here, particularly the one where you promote a company's product and then accuse someone of shilling. I deleted your promotional post and recommend you stay on topic and don't point fingers in a thread where people are just looking f...
by neptronix
Nov 07 2019 11:03am
Forum: E-Bike Build Threads / Photos & Video
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 279
Views: 24407

Re: High performance & durability Cannondale Semi Recumbent

Quick update. I still cannot crouch because some ligaments are still very tight in the inside of my right knee. I'm looking for one of those 'creeper' thingies that mechanics use to easily slide in/out from underneath a car so that i can get back to building :thumb: I'm walking without a cane full t...
by neptronix
Nov 07 2019 10:57am
Forum: Vendor Relations Corner
Topic: Alan From ERT bad business!!
Replies: 12
Views: 1697

Re: Alan From ERT bad business!!

Please don't accuse people of shilling unless you are dead sure. -management
by neptronix
Nov 07 2019 10:27am
Forum: EV Business World
Topic: Toyota will use Tokyo Olympics to debut solid-state battery electric vehicle
Replies: 13
Views: 1238

Re: Toyota will use Tokyo Olympics to debut solid-state battery electric vehicle

Yet there's gonna be a car with solid state batteries sitting on that podium still. A thing we've always dreamed of is gearing up to be mass produced. It's sad that we don't have the roads full of these things, but that whole 'by 2020' goal is turning out to not be complete vaporware. That's how i s...
by neptronix
Nov 07 2019 1:24am
Forum: Large EV General Discussion
Topic: 1988 Honda Prelude conversion - fastest build log ever.
Replies: 36
Views: 4141

Re: 1988 Honda Prelude conversion - fastest build log ever.

24kwh of lipo, jesus christ.. got any burnout vids, Jones? :mrgreen:
by neptronix
Nov 07 2019 1:21am
Forum: E-Bike General Discussion
Topic: Small hub motor
Replies: 22
Views: 1887

Re: Small hub motor

Bafang has a tiny little, very light, very small 2 gear reduction hub that you'd probably love. I haven't tried one, but here's a thread on 'em.

viewtopic.php?f=2&t=98059
by neptronix
Nov 07 2019 1:18am
Forum: General Discussion
Topic: Other uses for a spoke
Replies: 5
Views: 1066

Re: Other uses for a spoke

I loved using spokes to clean out the drains in my apartment because i was married to a shedder and she'd clog shit up good.... :lol:
by neptronix
Nov 07 2019 1:09am
Forum: Vendor Relations Corner
Topic: Alan From ERT bad business!!
Replies: 12
Views: 1697

Re: Alan From ERT bad business!!

I've been hearing these complaints for quite a while about Alan..
by neptronix
Nov 07 2019 1:02am
Forum: Battery Technology
Topic: LG HG2L
Replies: 3
Views: 393

Re: LG HG2L

http://budgetlightforum.com/node/68844?page=1

Budget light forums seems to think it's nothing special.

I haven't seen anything really interesting in batteries for a while..
by neptronix
Nov 07 2019 12:55am
Forum: E-Bike General Discussion
Topic: Buying a stealth bomber from amazon
Replies: 26
Views: 2016

Re: Buying ebike online from China??

I guess the question should be.. how hard of a lesson do you wanna learn? :lol: I've been to interbike where these characters set up their booths.. many of their demo bikes weren't even fully functional, lol. You'll be shocked at the price of shipping it back, because the west still subsidizes Chine...
by neptronix
Nov 06 2019 8:53pm
Forum: Battery Technology
Topic: Lipo slightly puffy
Replies: 32
Views: 2632

Re: Lipo slightly puffy

Cheap ones have a habit of being black boxes, can't handle the current lipo can deliver, and can murder the battery themselves.. I don't use RC Lipo anymore as i've had my high power fun, but i'd still rather not have one with my 18650 packs.. if i'd build them to be properly matched anyway. A well ...
by neptronix
Nov 06 2019 7:18pm
Forum: E-Bike General Discussion
Topic: Any advantage to a mid mounted hub drive ?
Replies: 14
Views: 745

Re: Any advantage to a mid mounted hub drive ?

You'd have to remachine the entire thing.. just think about it.. mount it by the shell, and then the axle spins, thus the phase wires spin. Not an easy engineering problem. Then you have to figure out how to mount a sprocket on to the axle. Instead of just putting a single cog on the casette freewhe...
by neptronix
Nov 06 2019 6:38pm
Forum: E-Bike General Discussion
Topic: Any advantage to a mid mounted hub drive ?
Replies: 14
Views: 745

Re: Any advantage to a mid mounted hub drive ?

Mount it like a hub.. use dropouts from a junk bike as the beginning of your mounting plate. And go beyond 3:1 so that you can get as much power density out of the motor as possible. I think 400RPM is where the magnets wanna start flying off the rotor, so a 4.5:1 ratio once you consider the back EMF...
by neptronix
Nov 06 2019 6:15pm
Forum: EV Business World
Topic: Toyota will use Tokyo Olympics to debut solid-state battery electric vehicle
Replies: 13
Views: 1238

Toyota will use Tokyo Olympics to debut solid-state battery electric vehicle

https://www.cnet.com/roadshow/news/toyota-solid-state-battery-electric-olympics/ Toyota has largely kept quiet on electric cars, instead focusing on its hybrid Prius lineup and hydrogen fuel cell technology. Next decade, that's set to change, and the automaker will kick things off next year in a bi...
by neptronix
Nov 06 2019 6:13pm
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 206
Views: 34023

Re: Farfles Electric Ultralight.

Sad that you had to move to gas. Solid state batteries can't come fast enough.
by neptronix
Nov 06 2019 5:49pm
Forum: E-Bike General Discussion
Topic: Any advantage to a mid mounted hub drive ?
Replies: 14
Views: 745

Re: Any advantage to a mid mounted hub drive ?

There's more advantages than disadvantages. A hub is a huge motor that only puts power up to a couple hundred RPM and is heavy and takes a lot of space. You'll use up a lot of precious space that could be used for batteries by using a hub. Unless you're using something like a dual reduction geared h...
by neptronix
Nov 06 2019 4:47pm
Forum: E-Bike General Discussion
Topic: Best rear tire for 26" DD hub motor
Replies: 26
Views: 1358

Re: Best rear tire for 26" DD hub motor

Is a larger diameter tire going to increase the WH/mi of an ebike? Does rolling resistance/friction generally scale with tire width? Check the ebikes.ca motor simulator for the answer. Some hub motors are more efficient than others at various tire diameters and speeds. The simulator will help answe...
by neptronix
Nov 06 2019 4:41pm
Forum: E-Bike General Discussion
Topic: Best rear tire for 26" DD hub motor
Replies: 26
Views: 1358

Re: Best rear tire for 26" DD hub motor

IMHO marathon plus is as good as it's gonna get. Which is only 7mm of rubber. Check my post history if you're looking for some tougher options than that. 22" and 20" bicycle rims have the option to run 16" and 18" motorcycle tires, which will get you 10mm or more of rubber, and of a harder compound....
by neptronix
Nov 06 2019 2:56pm
Forum: Forum Rules and Features
Topic: The future of our forum - facebook versus web forums
Replies: 100
Views: 21938

Re: The future of our forum - facebook versus web forums

Those formats are great for question/answer, but really bad about making questions/answers searcheable until you have a very large amount of content. They also aren't good at building friendships and such ( reddit has this problem too ). There's no such thing as a sticky thread or a build thread in ...
by neptronix
Nov 05 2019 11:25am
Forum: E-Bike General Discussion
Topic: 72V Motorcycle Wheels Mac 6T Motor Street Ride
Replies: 69
Views: 9177

Re: 72V Motorcycle Wheels Mac 6T Motor Street Ride

24" is good too and you'll see a minor power bump vs 26". Motorcycle tire fitment is out the window, but any MTB has better geometry and less risk of the pedals smacking the ground.

This can be a tough choice!

best wishes with your build tho, and wow if that isn't a cheap solution :thumb: