Search found 1878 matches

by wturber
Aug 18 2019 10:29am
Forum: E-Bike General Discussion
Topic: How do i work out the range at 17 amp 58 v battery pulling a 1000 watt hours
Replies: 16
Views: 233

Re: How do i work out the range at 17 amp 58 v battery pulling a 1000 watt hours

<snip> What you typically see though, is around 15-25 miles depending on wind, hills, and the total weight of you and the bike. Did the title of this thread change form "how far can I go" to "how do I figure?" Maybe its my bad memory? Anyway, the way I figure is based on my experiences with a fairl...
by wturber
Aug 17 2019 3:12pm
Forum: Motor Technology
Topic: APL's DIY axial-flux motor
Replies: 453
Views: 21975

Re: APL's DIY axial-flux motor

I wonder if anybody nearby has a cycle trainer you could hook up to. Either that, or a cheap on on Craigslist. Then you could have a standard of comparison that would be pretty constant. https://www.amazon.com/Sportneer-Trainer-Exercise-Magnetic-Reduction/dp/B07SST83B8/ref=pd_lpo_sbs_468_t_1?_encodi...
by wturber
Aug 17 2019 12:04am
Forum: E-Bike General Discussion
Topic: Is this used cargo ebike worth the price?
Replies: 7
Views: 174

Re: Is this used cargo ebike worth the price?

My rule of thumb is half of the new price assuming the item is in good condition and not obsolete. So were it me, I'd look for $1250 as the price - especially with the big question mark on the batteries. That's not so say that $1250 is the right market price, it is just my general approach.
by wturber
Aug 16 2019 4:38pm
Forum: E-Bike General Discussion
Topic: How do i work out the range at 17 amp 58 v battery pulling a 1000 watt hours
Replies: 16
Views: 233

Re: How do i work out the range at 17 amp 58 v battery pulling a 1000 watt hours

Between 30 and 60 miles depending on how you pedal and circumstances.

If you are a typical rider in typical conditions riding at speeds between 22-25 mph, I'd estimate about 44 miles.
by wturber
Aug 14 2019 3:15pm
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

Climate change? Really? Get serious. Let's say that the dire predictions come true. That's 2-3 centigrade maybe 75 years from now. Do you think a motor cares about 2-3 degrees centigrade? I don't know where you are living, but here in Europe climate change is definitely real and relevant for ebikes...
by wturber
Aug 14 2019 11:20am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

How do you guys cope with motor overheating in such hot places like Phoenix ? Maybe it's not even competition of mid drives that will kill the hub motor industry as OP suggested, but climate change... Climate change? Really? Get serious. Let's say that the dire predictions come true. That's 2-3 cen...
by wturber
Aug 14 2019 11:17am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

How do you guys cope with motor overheating in such hot places like Phoenix ? Maybe it's not even competition of mid drives that will kill the hub motor industry as OP suggested, but climate change... Morning temps should not be an issue, but coming home from work at 6p.m when it's 50°C outside - o...
by wturber
Aug 14 2019 11:14am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

That's what I saw in the reports in the Phoenix area. If your ebike looks like a moped and you are riding on the sidewalk or a bike path, you draw attention and reveal Police ignorance. But if you look like a weird conventional bicycle, they pretty much ignore your existence unless you do something...
by wturber
Aug 14 2019 11:12am
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5440
Views: 399081

Re: new eZip motor

... then do a search on DIY Long Tail Cargo bikes for ideas on how to extend a bike by adding the rear triangle to the back of another. Most of the simpler projects are essentially do it yourself Xtracycles. Be double sure that the bike is sound before giving others a ride.
by wturber
Aug 14 2019 12:22am
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5440
Views: 399081

Re: new eZip motor

Sunder wrote:
Aug 13 2019 6:54pm

You'd be better off getting a tandem, or a second bike.
I'd throw a Free Radical Xtracycle conversion into the mix as a possibility. You can sometimes find used ones for a good price on Craigslist.
by wturber
Aug 13 2019 4:43pm
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 938
Views: 112446

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier

If it's 26" it'd fit the trike, and would go well with other parts like the headlight and SMV sign and ball hitch that were also roadside finds. ;) THe wire "U" from my old fender is still intact, but the fender itself is crumpled and bent in a couple places from that crash that broke the fork. I'd...
by wturber
Aug 13 2019 4:31pm
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

Here anything that looks like a scooter or motorcycle are severely kept off the bike paths with 170$ tickets. Other than that, ebikers are never bothered as long as they wear a helmet and don’t run trafic lights. Yep. That's what I saw in the reports in the Phoenix area. If your ebike looks like a ...
by wturber
Aug 13 2019 8:42am
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 938
Views: 112446

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier

You mentioned adding a fender. I do have a front one that I found on the side of the road. I'm pretty sure it is from one of those yellow rental bikes since it is yellow and fairly heavy duty. You have to fiddle with how to connect it since one side of the rather thick wire that connects the fender ...
by wturber
Aug 13 2019 2:25am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

If they spent the same kind of money, I'd bet they get a sub 5s electric drag. 1-MegaWatt of Power https://www.youtube.com/watch?v=Kl55IpJxqq0 Maybe. But until someone actually does it you can't say it is so. Right now what we have is a HUGE gap in a sport where small fractions of a second are big.
by wturber
Aug 12 2019 8:35pm
Forum: E-Bike Build Threads / Photos & Video
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 224
Views: 9193

Re: High performance & durability Cannondale Semi Recumbent

Ah. I was going by the 1 1/4 and 1 1/8 inch sizes you mentioned. That looks like a metric diameter of 40mm to me.
by wturber
Aug 12 2019 8:26pm
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

People still make fun of electric vehicles. Think about how much money dragsters drop to make that mile in 1 second. Electric can do it, and faster, much simpler, and cheaper yet they are made fun of by ignorant people. Instant torque from zero rpm! :bigthumb: Best electric Dragster is 1/4 mile in ...
by wturber
Aug 12 2019 6:27pm
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

Y'all can make fun of small wheels but gaddamn if they don't have some huge upsides on certain bikes. Yes. I could accelerate a LOT faster on my folding Dahon that has 16" wheels. But the ride was super-harsh and gearing for reasonable speeds was problematic. What I really wanted was a Moulton, but...
by wturber
Aug 12 2019 6:08pm
Forum: E-Bike Build Threads / Photos & Video
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 224
Views: 9193

Re: High performance & durability Cannondale Semi Recumbent

This weekend I extended the steerer tube on a used Surly bike fork by inserting a 1" 413 tube about 2 inches into the 1 1/8" steerer and then inserting a 1 1/8" OD over that 1" tube. I sanded or ground the tubes so that they were a press fit and then used Brampton 20/20 toughened epoxy when I hammer...
by wturber
Aug 12 2019 5:34pm
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5440
Views: 399081

Re: new eZip motor

Sounds like you are substituting "car replacement" with "practical." Ebikes can be very practical. But they aren't nearly as versatile as the typical automobile. Because of that, they can seldom completely replace one. I've replaced about 70-80% of my single person car trips with ebike trips and abo...
by wturber
Aug 11 2019 10:00am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

Sorry lads; the future is a modular motor, easy to open and maintain, controlled by open source firmware. Those will benefit from a vast feedback crowd which will make the product better and better. We don't need modular motors or open source. We do need good, simple non-proprietary standards. And ...
by wturber
Aug 11 2019 9:53am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

Sure, but that's power down the drain if you're not really interested in that kind of ride. More power is always good and since I have a feeling we are almost all guys you should probably check for all balls present if you think you're not "interested in that kind of ride." Depends on what you mean...
by wturber
Aug 11 2019 9:50am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

Sure, I don't really know where that slope is myself, as I jumped in with a big direct drive hub and battery that brings my bicycle weight to 80 lbs or so (OK, it was already kind of heavy.) I was thinking more of the lower power light assist class of motor.etc that somewhat depends on crank drive....
by wturber
Aug 11 2019 12:58am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

It is easy enough to give a DD hub 3-5 times the power. You are feeding 1000w to yours, but you know that you could feed it much more, right? Sure, but that's power down the drain if you're not really interested in that kind of ride. It's power that you have to supply from a limited battery source,...
by wturber
Aug 10 2019 10:19pm
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 200
Views: 4297

Re: Hub motor industry dying?

It is easy enough to give a DD hub 3-5 times the power. You are feeding 1000w to yours, but you know that you could feed it much more, right? Yes. I'm well aware. In fact, I already have Statorade in my hub just in case. But doing so nudges me closer to "motorcycle" and that is all DIY or "hot-rodd...