Search found 127 matches

by slowhands
Dec 10 2015 10:42pm
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5488
Views: 423572

Re: new eZip motor

It goes on and on. Curtis, you are weak on technical, so please listen to the advice they give. Yeah, sure. You can probably run your bike on just the batteries and a switch. You will burn out many switches in a hurry, they are not for high current. That would require a starter solenoid, like for yo...
by slowhands
Dec 10 2015 8:16pm
Forum: E-Bike Non-hub Motor Drives
Topic: The King of Mid-Drive Batteries
Replies: 2
Views: 671

Re: The King of Mid-Drive Batteries

So, a fire can be avoided with very careful monitoring. A fire in the neighborhood of my crotch. It does not sound like a kingly ride to me.
by slowhands
Dec 10 2015 2:27pm
Forum: E-Bike Technical
Topic: Which rear-geared-drive for bike that has 8 rear speeds?
Replies: 80
Views: 4560

Re: Which rear-geared-drive for bike that has 8 rear speeds?

Don't waste your time with the Shimano freewheel. 14T top gear will be too slow. Get a DNP one with 11T top gear. My buddy put an 11-34 DNP freewheel on his pedicab trailer tow bike. It broke on its first night out. He put on a second one he had laid in as a spare. It broke on its first night out. ...
by slowhands
Dec 10 2015 2:16pm
Forum: E-Bike Technical
Topic: Which rear-geared-drive for bike that has 8 rear speeds?
Replies: 80
Views: 4560

Re: Which rear-geared-drive for bike that has 8 rear speeds?

I have a 48v battery pack, and looking for motors that will work with a Shimano 8-speed cassette. I am not sure which ones can do that. I have about 139mm space to play with. If you want to keep your cassette, use any hub motor with a freehub. Freehub motors are not as common as freewheel motors, a...
by slowhands
Dec 10 2015 1:55pm
Forum: E-Bike Technical
Topic: Speedo freakout while pedaling with PAS
Replies: 4
Views: 602

Re: Speedo freakout while pedaling with PAS

Disconnect the PAS or speedometer input from your controller. They are somehow connected, and you need only one or the other, no?
by slowhands
Dec 07 2015 9:25pm
Forum: E-Bike General Discussion
Topic: 20" vs 26" bike wheel, what's best?
Replies: 85
Views: 7465

Re: 20" vs 26" bike wheel, what's best?

On trash day after Christmas, there will be thousands of 26-inch BSO's on the trash heap, waiting to be picked up. If you happen to need parts for a project. Also BMX's with 20-inch wheels (for a trailer?)... I notice all the homeless types here seem to cruise around on mountain bikes. Maybe they w...
by slowhands
Dec 07 2015 9:18pm
Forum: E-Bike General Discussion
Topic: 20" vs 26" bike wheel, what's best?
Replies: 85
Views: 7465

Re: 20" vs 26" bike wheel, what's best?

It turns out my local bike shop does not carry axles, he said too many types they just special order them. That's poppycock. 9 and 10mm hollow axles and 3/8" solid axles are common, cheap commodity items that fit 90+ percent of hubs out there. There's no excuse for a bike shop not to keep them on h...
by slowhands
Dec 07 2015 6:01pm
Forum: E-Bike General Discussion
Topic: California: AB-1096 to classify an "electric bicycle"
Replies: 105
Views: 10042

Re: new E-Bike laws in California

So class one and three cannot have any throttle. Not even pedelec with additional throttle. Weird. But it's going to lead to local laws that prohibit throttles from trails, both the single track dirt trails, and the local multi use trails. At the Interbike test rides, I was surprised at how much I ...
by slowhands
Dec 07 2015 5:49pm
Forum: E-Bike General Discussion
Topic: 20" vs 26" bike wheel, what's best?
Replies: 85
Views: 7465

Re: 20" vs 26" bike wheel, what's best?

I think 27.5" wheels are a pretty crass attempt by the industry to get people to buy the same kind of equipment they already own, but for more money. I look at it this way: for all the same reasons that 26 inch wheels are better than 24 or 20 inch wheels, 29 inch wheels are better than 26. And if y...
by slowhands
Dec 04 2015 12:30pm
Forum: E-Bike General Discussion
Topic: 20" vs 26" bike wheel, what's best?
Replies: 85
Views: 7465

Re: 20" vs 26" bike wheel, what's best?

John CR and Dogman others are right on I am now going from a 26 to a 20 or maybe a 24 but I know I need to go smaller , Chalo is so wrong its funny he should read the history of the motorcycle Really? I have to disagree. Chalo is totally correct. He makes these blunt pronouncements, but he's been c...
by slowhands
Nov 27 2015 8:09am
Forum: E-Bike Technical
Topic: Charge phone off hall sensor power?
Replies: 14
Views: 1026

Re: Charge phone off hall sensor power?

I have a similar question. I want to power a hall sensor from another hall sensor in series, would that be possible? More specifically, there is a thermal switch in my motor that shuts off hall supply red wire upon overheating. But the controller is sensorless so it will not stop the commutation. I...
by slowhands
Nov 26 2015 10:12pm
Forum: E-Bike Technical
Topic: Charge phone off hall sensor power?
Replies: 14
Views: 1026

Re: Charge phone off hall sensor power?

New chargers don't have a 60hz transformer, so no short. They rectify the AC, then convert the DC to some lower voltage using 100khz magnetics in a tiny converter. Typically rectified AC is 168v peak, but a DC-DC converter may work OK on lower voltage, like 48v DC. Some will have undervoltage lockou...
by slowhands
Nov 26 2015 11:30am
Forum: E-Bike Non-hub Motor Drives
Topic: How to adapt motor to chain drive? Suggestions welcome!
Replies: 4
Views: 444

Re: How to adapt motor to chain drive? Suggestions welcome!

You are wasting your efforts. This motor needs to run very fast to develop much power and to turn its fan for cooling, like 2400 RPM. It will burn up quickly when used on a bike, at 60 RPM, unless you reduce the RPM by 25:1 using gears, and even then it may not last long. You need a motor with the g...
by slowhands
Nov 25 2015 9:34pm
Forum: E-Bike Technical
Topic: Charge phone off hall sensor power?
Replies: 14
Views: 1026

Re: Charge phone off hall sensor power?

Probably not a great idea, there is probably not enough current. You could easily screw up the operation of the motor if you overload the sensor supply. There are very cheap converters on ebay that will hack your battery voltage of up to 60v down to 5V. http://www.ebay.com/sch/i.html?_odkw=DC-DC+LM2...
by slowhands
Nov 24 2015 7:04am
Forum: E-Bike General Discussion
Topic: Old unknown Ebike - Restoration/Upgrade
Replies: 51
Views: 5943

Re: Old unknown Ebike - Restoration/Upgrade

About your problem getting the new BB to fit the existing bike BB threads, there are some cases where the chinese changed the thread to metric from inch. They went to 1mm thread pitch, about 25.4 threads per inch, and made the BB cups to match. As long as you use a similar thread, all is well. But H...
by slowhands
Nov 23 2015 8:13am
Forum: E-Bike Technical
Topic: Cyclone kit suddenly failed? Throttle or controller..?
Replies: 12
Views: 584

Re: Cyclone kit suddenly failed? Throttle or controller..?

Dammmn... I would still like to know if there's a way to test individual fets to see exactly which one/ones is burnt? And I am interested because I expected that there would still be a little bit of movement in the motor - just stuttering and humming etc, but there's nothing? Is that a normal sympt...
by slowhands
Nov 22 2015 12:01am
Forum: E-Bike General Discussion
Topic: 500w, Dayton 24V DC Gear Motor MY1020 setup
Replies: 1
Views: 1001

Re: 500w, Dayton 24V DC Gear Motor MY1020 setup

I assume you are in Australia, since you mention a motor that seems to be available only there. http://www.ejwinter.com.au/dayton-500w,-0.67-hp-24v-dc-planetary-gear-motor,-500-rpm-p465/ https://www.motiondynamics.com.au/dayton-500w-0.67-hp-24v-dc-planetary-500rpm.html This is another brushed motor,...
by slowhands
Nov 19 2015 11:57pm
Forum: E-Bike Technical
Topic: Issue with GNG Mid-drive Kit
Replies: 3
Views: 453

Re: Issue with GNG Mid-drive Kit

Here is the Wiki on your problem.
https://endless-sphere.com/w/index.php/ ... less_Motor

Here is what I do first: Interchange any two of three phase wires to the motor.
by slowhands
Nov 18 2015 12:06am
Forum: E-Bike General Discussion
Topic: electric fence module used for anti-theft device.
Replies: 7
Views: 506

Re: electric fence module used for anti-theft device.

Use a tazer for the charge, and connect to either the grips or put two contacts on the saddle. Brings new meaning to the term electric bike.
by slowhands
Nov 15 2015 11:54am
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5488
Views: 423572

Re: new eZip motor

Ok I got that. I realize all SLA batteries are shit. I got that. I am looking for batteries for dual AmpFlow motors. I also just posted on skakabalas misfire post. Please check it out if you can.I am looking to move on to bigger and better things. Post some affordable 72V 200Ah batteries please if ...
by slowhands
Nov 14 2015 8:10pm
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5488
Views: 423572

Re: new eZip motor

Acid is the way to go. Lead Acid. I got you covered.
ZZ Jane Curtains bike.gif
ZZ Jane Curtains bike.gif (62.84 KiB) Viewed 2004 times
by slowhands
Nov 14 2015 10:35am
Forum: EV Business World
Topic: Is there room for a new electric bicycle company in the US?
Replies: 18
Views: 2812

Re: Is there room for a new electric bicycle company in the

Apple zealots conveniently forget that Apple was a miserable failure during their first 30 years. It wasn't until they gave up on the personal computer market and started concentrating on the new mobile device market in 2007 that they achieved commercial success. Of course their first mobile produc...
by slowhands
Nov 14 2015 10:25am
Forum: E-Bike General Discussion
Topic: Secure triangle battery pack
Replies: 5
Views: 860

Re: Secure triangle battery pack

A determined thief can steal anything. There is a Dawes bike frame for sale on my local Craig's List right now. Nice frame. The owner chained the complete bike outside overnight. By morning, the wheels, brakes, shifters, forks were stolen; the frame was bare except for the chain. Take the battery wi...
by slowhands
Nov 14 2015 9:45am
Forum: E-Bike Technical
Topic: Battery performance dropped off in 2013 Stealth Bomber
Replies: 10
Views: 738

Re: Battery performance dropped off in 2013 Stealth Bomber

Hi Ive got a 2013 Stealth Bomber that has done 5000 Kms on the road it normally gets about 45km out of 18 Ah before the battery dies. Last few rides the battery died at about 12 Ah and 30km. Im wondering if anyone can tell me exactly what has failed. Not overly technically minded but if I need to r...
by slowhands
Nov 13 2015 10:35am
Forum: E-Bike General Discussion
Topic: Factory Longtail Cargobikes (17 so far)
Replies: 115
Views: 31161

Re: Factory Longtail Cargobikes (17 so far)

Seen on Craigslist, said to be a Virtue Cargo Bicycle. I have no idea who really makes it but there is a Virtue Cycle company in San Diego, though this is not in their catalog. The forward weight does not affect steering, since it is mounted to the frame. But how do you get on the seat? I mean, if t...