Search found 1987 matches

by Voltron
Nov 26 2014 12:31am
Forum: E-Bike Build Threads / Photos & Video
Topic: Guess the vids were unaprovable...
Replies: 16
Views: 1543

tet

test [youtube]http://youtu.be/_As9jzT3i3I[/youtube]
by Voltron
Nov 25 2014 10:27am
Forum: E-Bike Technical
Topic: Breaking Spokes
Replies: 81
Views: 6171

Re: Breaking Spokes

Had a reply buried up there higher... but yes... cheaply made spokes will break at the middle....or the ends... or anywhere. We sell a lot of cheap beach cruisers at my shop, and have seen customer wheel come back with breaking spokes, and I have been able to take a bad one and start breaking inch l...
by Voltron
Nov 20 2014 3:45pm
Forum: E-Bike General Discussion
Topic: 1000W, 48V, 20Amp battery, motor, bike) for < $900
Replies: 20
Views: 2168

Re: 1000W, 48V, 20Amp battery, motor, bike) for < $900

Having done a few cheap bike builds now....having the derailleur that bolts onto the frame and axle is a giant pain compared to a frame the has a derailleur hanger on the dropout independent of the axle. Also, the smaller 1" headset really limits your choice of an upgrade fork later, most of the dec...
by Voltron
Apr 13 2014 11:02am
Forum: E-Bike General Discussion
Topic: Help choosing a kit for 36mph+
Replies: 39
Views: 5774

Re: Help choosing a kit for 36mph+

Re phase current... at low motor RPM the voltage thru the windings is lower, so the the controller raises the amps to get the torque, so yes, the phase current can be higher than the battery current.
by Voltron
Apr 09 2014 7:51am
Forum: E-Bike Technical
Topic: Breaking Spokes
Replies: 81
Views: 6171

Re: Breaking Spokes

I have a cast metal wheel motor on mine.. no spokes :D
by Voltron
Apr 09 2014 7:32am
Forum: E-Bike General Discussion
Topic: From 38T to 46T Chainwheel
Replies: 7
Views: 780

Re: From 38T to 46T Chainwheel

You will need a longer chain...
by Voltron
Apr 08 2014 11:54pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Modern boardtrack-inspired cruiser build
Replies: 143
Views: 30646

Re: Modern boardtrack-inspired cruiser build

You can get that post out... I've made a variety of homebuilt slide hammers with a springy hook on the end the right size to pop into the top hole but jam on the way out. Had to use an actual toggle bolt on the end for one really stubborn one. Isn't it amazing how tight they wedge in there after onl...
by Voltron
Apr 08 2014 11:25pm
Forum: E-Bike General Discussion
Topic: Trying to ditch spokes and go hard plastic...
Replies: 13
Views: 1322

Re: Trying to ditch spokes and go hard plastic...

We sell those sort of "mag" wheels at our shop for non electrics... probably not actually magnesium, incredibly heavy, pretty true but slight hop with no way to take it out, and weak enough that several got a flat spot from a hard hit in the section between spokes. And they're so un-aerodynamic they...
by Voltron
Apr 08 2014 10:25pm
Forum: E-Bike Technical
Topic: Breaking Spokes
Replies: 81
Views: 6171

Re: Breaking Spokes

It could maybe... but the reality of getting wood that isnt going warp, the craftsmanship involved, the weight, winds shoving the solid disc around, termites...theres nothing wrong with spokes per se, just pay to get the good ones if you want it to last.
by Voltron
Apr 08 2014 9:45pm
Forum: E-Bike General Discussion
Topic: Can anyone help to ID this motor?
Replies: 15
Views: 926

Re: Can anyone help to ID this motor?

Is that a big rust drip coming out of the side cover at about 2 oclock.. where it used to be at the bottom for a long time while water seeped out?
by Voltron
Apr 08 2014 9:34pm
Forum: Electric Aircraft
Topic: Hi power electric ducted fans
Replies: 78
Views: 31488

Re: Hi power electric ducted fans

if Lady Gaga (seen here) can do it for a flying dress.... somebody here should be able to pull it off. The guy in the corner is flying it by remote...
by Voltron
Apr 05 2014 7:06pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My 1.5 kwh bicycle
Replies: 7
Views: 1444

Re: My 1.5 kwh bicycle

Probably isnt going to end up mattering but your rotor on your front disc brake is mounted backwards... the legs are supposed to point into the direction of the wheel spin.
by Voltron
Apr 05 2014 5:31pm
Forum: E-Bike Technical
Topic: Breaking Spokes
Replies: 81
Views: 6171

Re: Breaking Spokes

When the breaks look like that in the middle... its a bad run of spokes. You see them come in batches, we sell a lot of cheap beach cruisers where I work, and somebody will bring in their newish wheel, and you can break the spokes with your fingers, which is scary. On a really bad one you can break ...
by Voltron
Apr 04 2014 12:24pm
Forum: E-Bike Non-hub Motor Drives
Topic: Carbon ebike - Casey
Replies: 32
Views: 7311

Re: Carbon ebike - Casey

It's a great looking build... and totally not being the naysayer, but the headtube to downtube join is a little worrisome. It seems like with all the stress there esp with the added weight of the drive package having a stub tube of carbon coming off the headtube for the downtube to mold around, or s...
by Voltron
Mar 20 2014 4:56pm
Forum: E-Bike Non-hub Motor Drives
Topic: My RC ebike -Matt Shumaker Astro3220- with a mind of its own
Replies: 5
Views: 1994

Re: My RC ebike -Matt Shumaker Astro3220- with a mind of its

Mine did the exact same thing after a few rides, leading to some frantic plug pulling. It turned out to be a tiny pinch in the throttle wire midway down the bike, once I figured out the spot I could poke it with my finger and make the bike jump. Been running fine since running new wires the the same...
by Voltron
Mar 05 2014 11:49pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Your Creation's Before & After Pics
Replies: 1870
Views: 649444

Re: Your Creation's Before & After Pics

That scooter motor is terrific btw, having a built in brake saved a lot of hassles, it has an oversize axle, so big flats, the casting acts like a heatsink, and it goes up hill like no other hub motor I've ridden... unstoppable power delivery. It was the same width across the dropouts as a regular g...
by Voltron
Mar 05 2014 11:36pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Your Creation's Before & After Pics
Replies: 1870
Views: 649444

Re: Your Creation's Before & After Pics

It is a big longer than the original shock... but an unfortunate part of that frame design is the swingarm hits the bottom bracket shell if you go much longer. But since I was just putting it together as an what the hell project, didnt really plan it out too well. Now I know all the things to look f...
by Voltron
Mar 04 2014 12:49pm
Forum: E-Bike Technical
Topic: Broken chinese 250W PAS eBike electric issue
Replies: 14
Views: 2248

Re: Broken chinese 250W PAS eBike electric issue

Bummer you're having trouble so soon, esp on a cool looking frame like that. My guess would be under all that tape where the controller and wires are shoved into that tiny, hot, floodable little compartment, something as simple as one loose Hall sensor wire will shut the motor down even though all t...
by Voltron
Mar 04 2014 2:05am
Forum: E-Bike Build Threads / Photos & Video
Topic: When a Extreme 600 scooter does the nasty with a Mongoose
Replies: 8
Views: 981

Re: When a Extreme 600 scooter does the nasty with a Mongoos

By using a shitty digital, and not a megepixel modern camera.... lol
by Voltron
Mar 03 2014 8:27pm
Forum: E-Bike Build Threads / Photos & Video
Topic: When a Extreme 600 scooter does the nasty with a Mongoose
Replies: 8
Views: 981

Re: When a Extreme 600 scooter does the nasty with a Mongoos

A little preface... I'm a hardcore pedal guy (like no car for 12 years pedal guy), and the shop I started working part time at had a few e bikes. I already had some background putting diesel replacement electric drives in sailboats, so guess who they made the e bike guy? After fixing and testing a f...
by Voltron
Mar 03 2014 9:33am
Forum: E-Bike Build Threads / Photos & Video
Topic: Your Creation's Before & After Pics
Replies: 1870
Views: 649444

Re: Your Creation's Before & After Pics

The proud parents...with their ugly but useful child.
by Voltron
Mar 02 2014 11:03pm
Forum: Electric Watercraft
Topic: Electric tool boat
Replies: 9
Views: 1736

Re: Electric tool boat

Yes, it usually doesn't have to go far. It's REALLY heavy, and a fun coordination challenge to do the left hand/right hand/front motor back motor thing while you do the Blues Brothers parking job with it, (or the Captain Ron, if you prefer)
by Voltron
Mar 02 2014 10:39pm
Forum: Electric Watercraft
Topic: Electric tool boat
Replies: 9
Views: 1736

Re: Electric tool boat

On a 12,000 lb boat you don't notice it much..