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by neptronix
Oct 08 2010 6:18pm
Forum: General Discussion
Topic: FAA Issues Lithium Battery Fire-Safety Alert
Replies: 16
Views: 1638

Re: FAA Issues Lithium Battery Fire-Safety Alert

So in other words.. not time to order the boatload of zippy flightmax batteries yet. :)
by neptronix
Oct 08 2010 2:49pm
Forum: E-Bike General Discussion
Topic: geared hubs - need advice
Replies: 10
Views: 742

Re: geared hubs - need advice

yeah well, name me a company that manufactures motors in America..!

Even BMC makes 'em in India apparently.
by neptronix
Oct 08 2010 2:46pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Crazy Police Bike Chase
Replies: 12
Views: 1695

Re: Crazy Police Bike Chase

That was either drbass, or some dude on a motorcycle.
by neptronix
Oct 08 2010 1:35pm
Forum: E-Bike General Discussion
Topic: geared hubs - need advice
Replies: 10
Views: 742

Re: geared hubs - need advice

if you don't mind forking over for quality and an american brand name..
look up ampedbikes, hitekebikes, e-bikekit.com

Good places to start.
by neptronix
Oct 08 2010 3:06am
Forum: E-Bike General Discussion
Topic: Sanyo Eneloop commercial
Replies: 13
Views: 1154

Re: Sanyo Eneloop commercial

Meh, i rode that bike. BAD pedal sensor causes weird gaps in power. Slow, low top speed. Accidentally bump/rub/disturb the wheel or pedal, and it will try to move forward on it's own. Fail fail fail. Nice looking package though. Cannot deny that. But it is the worst eBike i've ridden so far. And i'v...
by neptronix
Oct 07 2010 1:30pm
Forum: E-Bike General Discussion
Topic: Winter Riding, keeping warm.
Replies: 52
Views: 9320

Re: Winter Riding, keeping warm.

veloman; will a face mask prevent you from getting a cold while riding in the winter? I usually stay inside during the winter and just drive because if i go out and excersize in the middle of winter, i end up with instant bronchitis. I wonder if it is because the lungs just get too damn cold and can...
by neptronix
Oct 07 2010 12:43pm
Forum: E-Bike General Discussion
Topic: Ebikes in Denver Post today; most read article in the state!
Replies: 8
Views: 750

Re: Ebikes in Denver Post today; most read article in the st

this is an editorial from the offices of the denverpost itself? this is like the saying about "when pigs fly". this is the reality of where electric assist has to be. this is very encouraging. the EV world is coming. oil traded above $84 this morning, dollar stronger now so it collapsed, but it is ...
by neptronix
Oct 06 2010 7:39pm
Forum: Battery Technology
Topic: Konion / Sony US18650 cells
Replies: 9
Views: 1836

Re: Konion / Sony US18650 cells

Sorry to threadjack, but just curious... where/how does one acquire all these discarded cells?
by neptronix
Oct 06 2010 4:18pm
Forum: E-Bike General Discussion
Topic: Off the shelf? is 50 mph a dream?
Replies: 55
Views: 4250

Re: Off the shelf? is 50 mph a dream?

I try not to push the legality in my town, and ruin it for others. Then we'd be just like some Arizona towns. So my "bike trail" bike goes 20 mph. Off the bike trail, in the right place and time, I have a faster bike. That's what i'm talkin' bout. All it takes is for a few guys keeping up with cars...
by neptronix
Oct 06 2010 3:47pm
Forum: Large EV General Discussion
Topic: 1985 Mazda RX7 EV for sale $15,000
Replies: 6
Views: 2157

Re: 1985 Mazda RX7 EV for sale $15,000

Age makes things worse. I hope all the chassis/suspension rubber and metal has been replaced. A car of this age is certainly needing to be 'bought again' if you have to replace all that stuff. The components sans the batteries make this car certainly worth something, but lead acid is just fail all a...
by neptronix
Oct 06 2010 1:55pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Dawn of the Juicer 36v, EV-Twin motorbicycle
Replies: 23
Views: 9300

Re: Dawn of the Juicer 36v, EV-Twin motorbicycle

Freaking awesome. The v-twin battery config takes the cake :)
by neptronix
Oct 06 2010 12:50pm
Forum: E-Bike General Discussion
Topic: Looking to buy an e-bike
Replies: 18
Views: 1238

Re: Looking to buy an e-bike

I'll tell ya this. You can build your own eBike for around $700-$800, maybe even less. Cell_man has a cheap geared motor kit. ( see the for sale section here on the boards ) That is a good place to start for a budget build. The eZips are okay for the price. But expect a Chinese quality bike, that is...
by neptronix
Oct 06 2010 1:34am
Forum: E-Bike General Discussion
Topic: Electric Rider Kits?
Replies: 17
Views: 2040

Re: Electric Rider Kits?

A front fork can only handle so much power. Go look at where the wheel connects to the bike on the front and the rear. The rear dropouts are typically 2-3 times more solid, since the majority of the weight sits on the rear wheel. I am only saying '400w' because it sounds like you're looking for some...
by neptronix
Oct 06 2010 1:06am
Forum: E-Bike General Discussion
Topic: Electric Rider Kits?
Replies: 17
Views: 2040

Re: Electric Rider Kits?

friction drive eats tires a bit more. And wet traction is typically a problem with friction drive. Kepler says his system doesn't have wet traction issues... but i'll tell ya, other friction drive systems certainly have problems. So.. ? The upside is that it can be INCREDIBLY fast and setups are typ...
by neptronix
Oct 06 2010 12:22am
Forum: E-Bike General Discussion
Topic: Ebike brake quality
Replies: 32
Views: 8147

Re: Ebike brake quality

My theory is that they're there to stop the pedal assist. I've ridden 2-4 eBikes where the pedal assist controller is connected, and at times, the assist can engage at full throttle unexpectedly while not pedaling if the pedal is at a certain degree! very dangerous!! So for me and my girlfriend's eB...
by neptronix
Oct 05 2010 12:55pm
Forum: Battery Technology
Topic: What kind of case do you store your lipo's on your bike?
Replies: 4
Views: 588

Re: What kind of case do you store your lipo's on your bike?

rear mounted topeak bag ( i found one cheap ) that is not waterproof... but i have the batteries in a LP-sack and tiny drain holes are drilled into the bottom of the topeak bag, in case water gets in.

As long as the batteries hang out in the center, they should keep 100% dry.
by neptronix
Oct 05 2010 1:15am
Forum: E-Bike General Discussion
Topic: Electric Rider Kits?
Replies: 17
Views: 2040

Re: Electric Rider Kits?

Hey there. I was in your position not long ago. Had my 'dream bike', which was a diamondback insight one. light weight aluminum, skinny tires, etc. But an aluminum frame can handle only so much power. If you search around, you'll hear stories of dropouts being ripped! more so the front ones than the...
by neptronix
Oct 05 2010 12:25am
Forum: E-Bike Reviews & Testing
Topic: Ecobike Elegance lithium 36v bicycle
Replies: 0
Views: 1108

Ecobike Elegance lithium 36v bicycle

Allrighty, so this is my first official eBike. I bought two of these because they were a steal for $500 a piece from a local eBike rental place. http://www.ecobike-usa.com/products/elegance-electric-bike.asp By the way, the specs on the site are not correct. The bike contains a 250 watt 36v controll...
by neptronix
Oct 04 2010 8:18pm
Forum: General Discussion
Topic: Tron - prone recumbent ebike
Replies: 37
Views: 5243

Re: Tron - prone recumbent ebike

veloman wrote:After watching that video.... my interest has dropped considerably. lol
LOL.. that's what i was saying. Looks like something out of Borat.
by neptronix
Oct 04 2010 12:18pm
Forum: Battery Technology
Topic: How do I know if my lifepo4 is wearing out?
Replies: 19
Views: 1451

Re: How do I know if my lifepo4 is wearing out?

Have you measured the battery voltage VS the cell voltage x 16?
It could be something as minor as a loose soldered connection to a few cells.

Like the previous poster said.. drain that pack a bit and see where the cells are at then. That should reveal some things for ya :)
by neptronix
Oct 01 2010 12:56am
Forum: E-Bike Build Threads / Photos & Video
Topic: Smart eBike
Replies: 10
Views: 1948

Re: Smart eBike

Very nice.
What's the cost.... ova 9 thousand?!!?
by neptronix
Sep 30 2010 2:37am
Forum: Motor Technology
Topic: YokelessAndSegmentedArmature(YASA) topology- GT 30N·m/kg
Replies: 19
Views: 7641

Re: YokelessAndSegmentedArmature(YASA) topology- GT 30N·m/kg

Sounds less like a 'cordless drill' electric motor, and more like a subaru boxer motor!!
But with the ft-lbs of a large 7.0L+ v8 in 50lbs.. that's just crazy.

I like it! Looks like water cooling may be required though.. so no hub motor version i bet :(
by neptronix
Sep 30 2010 1:37am
Forum: E-Bike Technical
Topic: Heatsinking Fail on Controllers
Replies: 10
Views: 852

Re: Heatsinking Fail on Controllers

As a computer builder, i've dealt with this plenty putting heatsinks on CPUs. You want as little gap as possible, and silver stuff is better than white stuff. wipe off all the old crap and replace it with something like this: http://www.arcticsilver.com/ Or at the very least, assure everything is ti...
by neptronix
Sep 29 2010 2:45pm
Forum: E-Bike General Discussion
Topic: Is there a 12 step program for bikes?
Replies: 24
Views: 1501

Re: Is there a 12 step program for bikes?

My problem is getting so bad that it is getting in the way of my problem :lol: I think I have around 22 complete bikes now in various bike, ebike, scooter, and moped forms. DRZ 110 Honda 50 rat bike yamaha Riva Honda Spree Tomos Golden Bullet electric/ gas hybrid Concorde (storing for a buddy) Derb...
by neptronix
Sep 28 2010 4:52pm
Forum: E-Bike General Discussion
Topic: Is there a 12 step program for bikes?
Replies: 24
Views: 1501

Re: Is there a 12 step program for bikes?

I know what you mean. I don't even have a roadable ebike right now and i've already bought another and am pricing out components left and right.. lol.