Search found 585 matches

by cycleops612
Dec 07, 2017 6:51 am
Forum: E-Vehicles General Discussion
Topic: Madness. Why such slow penetration for hybrid?
Replies: 60
Views: 1026

Re: Madness. Why such slow penetration for hybrid?

OT, as it's re pure plug in EV in china, but in the background of this strangely fascinating doco: https://topdocumentaryfilms.com/bulkland/ is the pervasive use of battery powered trikes like small delivery trucks in china - i dont even recall them having number plates. Only after orders are delive...
by cycleops612
Nov 23, 2017 1:50 pm
Forum: E-Bike Technical
Topic: 2WD (Two-Wheel Drive) FAQ
Replies: 213
Views: 31754

Re: 2WD (Two-Wheel Drive) FAQ

motomech, more laboriously than "in theory", i meant i have not done it, but that seemed best from past reading & considering the matter for myself. Its a v old thread and yes i saw your? late posts belatedly - it happens - boo hoo - why so upset? it seemed relevant to the posters query & you confir...
by cycleops612
Nov 23, 2017 6:33 am
Forum: E-Bike Technical
Topic: 2WD (Two-Wheel Drive) FAQ
Replies: 213
Views: 31754

Re: 2WD (Two-Wheel Drive) FAQ

PS.

My biggest fear w/ incurring the wrath of the local cops, is not having a plan B to make it kosher again once I have been warned once and noted. Simply removing/swapping the front wheel for road use I could live with.

To being precluded from the road seems a big/costly risk.
by cycleops612
Nov 23, 2017 6:25 am
Forum: E-Bike Technical
Topic: 2WD (Two-Wheel Drive) FAQ
Replies: 213
Views: 31754

Re: 2WD (Two-Wheel Drive) FAQ

You are breaking the law, are you prepared for that? I bet you'r fun at parties. :) Just saying, my longyeah axial drive mid motor (24 powered gears) is only visible to the practiced eye (unlike the battery of course). I strongly suspect a second motor would pass notice. What hasnt been mentioned a...
by cycleops612
Nov 22, 2017 11:05 pm
Forum: E-Vehicles General Discussion
Topic: Madness. Why such slow penetration for hybrid?
Replies: 60
Views: 1026

Madness. Why such slow penetration for hybrid?

This is madness. Why such slow penetration for hybrid (optionally plug in) in areas where its a cost saving no brainer, like stop start utility vehicles? Instead of targeting obvious low hanging fruit, marketing and fantasyland tree huggers have hijacked EVs into some "statement" that clearly isnt c...
by cycleops612
May 15, 2017 4:40 pm
Forum: Alternative Energy
Topic: Solar Energy Storage
Replies: 21
Views: 1899

Re: Solar Energy Storage

Thing is, its often forgotten, that a stationary battery is a whole other debate to the usual ev context. Weight, & sometime space, is irrelevant. there is no need for expensive light cutting edge stuff. The tesla 18650 power wall seems stupid to me. As well as charge, why not also hunt up suitable ...
by cycleops612
May 09, 2017 8:17 pm
Forum: Battery Technology
Topic: How to use a 60v battery pack on 48v motor
Replies: 19
Views: 972

Re: How to use a 60v battery pack on 48v motor

I'd like to add to this. While what they say above is true, cooking the motor still is a serious concern, because motors are usually most efficient just below their no-load speed. By increasing the voltage, you are increasing the no load speed. So if the motor was wound to drive you at, (for ease o...
by cycleops612
May 09, 2017 8:01 pm
Forum: E-Bike General Discussion
Topic: Paratrooper Build
Replies: 8
Views: 645

Re: Paratrooper Build

Or, do 2WD using 2 x; more conventional, less wheel stressing, hub motors, front & back.
by cycleops612
May 09, 2017 7:25 pm
Forum: General Discussion
Topic: China’s bicycle-sharing boom poses hazards for manufacturers
Replies: 4
Views: 296

Re: China’s bicycle-sharing boom poses hazards for manufactu

I tried bike sharing once, but we were drunk and fell off.
by cycleops612
May 09, 2017 7:21 pm
Forum: E-Bike General Discussion
Topic: Ebike Weight....
Replies: 25
Views: 1216

Re: Ebike Weight....

It bears saying that its relevance is proportional to rider weight. my bike is ~25kg & i am 75kg. If only cars were similar proportionally? :) ~Philosophically for me, if i cant heft it, its not really a bicycle anymore. Here in sydney Oz, the metro trains are a wonderful range extender. Most, but n...
by cycleops612
May 02, 2017 8:21 am
Forum: Battery Technology
Topic: Can a ping 48v15ah do two motors? And fullriver packs?
Replies: 28
Views: 1327

Re: Can a ping 48v15ah do two motors? And fullriver packs?

motomech: yep, cant see 24v winning beauty contests in USA. Here in sydney oz 250w is legal limit, only if no throttle only mode - else, 200w. largely honored in the breach, but a ~confiscated bike? is a worry. Doesnt pay to be in the cops face. Only good to 3-400w. I have a 250w 24v. its ok for old...
by cycleops612
Apr 30, 2017 1:56 pm
Forum: E-Bike General Discussion
Topic: At what wattage can 1200 wh of battery give me 60 mile range
Replies: 14
Views: 442

Re: At what wattage can 1200 wh of battery give me 60 mile r

In less enlightened countries and times, cyclists hang on to a passing truck or bus up hills to improve range.

:)

Its worked for me a few times.
by cycleops612
Apr 30, 2017 1:51 pm
Forum: E-Bike General Discussion
Topic: At what wattage can 1200 wh of battery give me 60 mile range
Replies: 14
Views: 442

Re: At what wattage can 1200 wh of battery give me 60 mile r

I read that, In ideal conditions, a road race cyclist lapping a race track at 25kmph uses 100w. Each extra 5 kmph needs another 100w. Mostly u r battling the wind at over ~25kph. u can extrapolate from that. 250w sounds fine for 30kph in theory. I suspect hub motors suffer here. mid drives can opera...
by cycleops612
Apr 30, 2017 8:32 am
Forum: Battery Technology
Topic: Can a ping 48v15ah do two motors? And fullriver packs?
Replies: 28
Views: 1327

Re: Can a ping 48v15ah do two motors? And fullriver packs?

I like the elegant simplicity of your 2wd approach/philosophy. The key to this simplest approach is the throttle set-up. I have thumb inside of a left-side, half-twist; 100_0028.JPG 100_0029.JPG It's very natural and intuitive. Although, most of the time, I'm running the rear(main)motor w/ the PAS,...
by cycleops612
Apr 29, 2017 9:31 pm
Forum: Battery Technology
Topic: Can a ping 48v15ah do two motors? And fullriver packs?
Replies: 28
Views: 1327

Re: Can a ping 48v15ah do two motors? And fullriver packs?

mototech I like the elegant simplicity of your 2wd approach/philosophy. Dont balance 2 batteries, balance the use of them by favoring one motor or the other during the trip to suit, with the bonus of pretty full redundancy. I would like your rig as a mid drive also (maybe a 2 speed xiongda on front ...
by cycleops612
Apr 20, 2017 11:26 pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1500
Views: 131994

Re: 2 Speed Xiongda hubmotor

Take a flat on hub motor with no tools you're walking home same as a busted transmission on a mid drive. Humans tend to like/prefer what they know. Some folks have not extensively used both systems. I have... Have to defer to your experience, as mine is not "extensive". But have you ridden an XD? I...
by cycleops612
Apr 19, 2017 3:41 pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1500
Views: 131994

Re: 2 Speed Xiongda hubmotor

"I like mid drive too, but clearly, many prefer the simplicity and cost of hubs, & so, 2 speed beats the hell out of 1 speed." Well said, cy. An update. My 48 v, 15 a, XD on a 16" tire, mounted to a Bike E2 tandem, just got back from 2 months in Florida. It was just the thing for darting in and out...
by cycleops612
Apr 19, 2017 3:13 pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1500
Views: 131994

Re: 2 Speed Xiongda hubmotor

as i said, i like mid drives (PARTLY influenced by Oz having EU rules of 2-250w max power street legal), but since XD is unfairly slagged off here, then to be the devils advocate, midS achilles heel is the drive train. ~Delicate, non redundant & fiddly. if a hub motor breaks on the road, u can pedal...
by cycleops612
Apr 19, 2017 3:22 am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1500
Views: 131994

Re: 2 Speed Xiongda hubmotor

The most interesting part is that it provides a lot of torque at 250w. Here in Europe 250w is the legal power limit so installing a bigger motor isn't an option. even 1 kw hub motor sucks for the rockies or appalachian terrain. I like mid drive too, but clearly, many prefer the simplicity and cost ...
by cycleops612
Apr 19, 2017 3:05 am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1500
Views: 131994

fyi bonnie from XD response

FYI, a response fr bonnie at XD re "Last I checked, u dont have a 24" wheel & hub kit? is this still so? I would consider cast alloy wheel w/ integrated hub motor. its for an adult tricycle, & they are mostly 24" is it true rolling trikes backwards damages the xd hub?" bonnie: "now we have one 24inc...
by cycleops612
Apr 19, 2017 12:31 am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1500
Views: 131994

Re: 2 Speed Xiongda hubmotor

Need education. Why would someone buy these over a mid drive or simply a more powerful hub? They look like junk. I think u mean - why would anyone not do what i would do if i were in their shoes. Trouble is u r not & never will be. u dont know what u dont know. r u saying no one above has stated a ...
by cycleops612
Apr 16, 2017 10:07 am
Forum: E-Bike Photos & Video
Topic: What are the best tires ?
Replies: 18
Views: 1293

Re: What are the best tires ?

Chalo wrote:That's all good background information, and I think all the models mentioned are still available.

There's a strong bias towards pavement-oriented tires in those links, which is consistent with my strong bias towards riding on pavement.
- among other things as i recall - like spoked wheels.
by cycleops612
Apr 16, 2017 10:02 am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1500
Views: 131994

Re: 2 Speed Xiongda hubmotor

we found a way to do SELF TESTING 1-6 #2 and #5 NG (Failed?) #2 PAS sensor #5 Motor Hall Sensor I had the same issue with the 25H error code on the double torque/double speed motor from Luna. Try disconnecting the two brake sensors. That made my error code go away. I think this will get you to pass...
by cycleops612
Apr 16, 2017 9:58 am
Forum: Battery Technology
Topic: Hybrid lipo/18650 pack, different capacity ?
Replies: 32
Views: 2320

Re: Hybrid lipo/18650 pack, different capacity ?

Proof of the "fundamentalness" of this thread, is the grid itself.

It requires just such a hybrid of power sources to work properly - from base load to degreesof on tap variable power like hydro & gas turbine.