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Search: Posts Made By: Doc_Wui
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09-13-21, 03:48 PM
Replies: 4
Views: 148
Posted By Doc_Wui

I''ve never seen one. I've owned three different...

I''ve never seen one. I've owned three different brands of LCD;s. All are five pin. Power, Ground, Ignition, Transmit Data, Receive Data. And all three have different communication protocols, so they...
09-12-21, 02:08 PM
Replies: 4
Views: 212
Posted By Doc_Wui

Thats a shame, I paid $45 for a used motor, with...

Thats a shame, I paid $45 for a used motor, with wheel and a Shwalbe Marathon tire. Sell off the parts.
09-12-21, 11:00 AM
Replies: 7
Views: 209
Posted By Doc_Wui

Visit a Pedego shop in Pittsburgh and try to test...

Visit a Pedego shop in Pittsburgh and try to test ride. Their bikes have quite the markup, as their customer base is boomers with a lot of dough, who need their ebike experience delivered with a lot...
09-09-21, 08:49 PM
Replies: 10
Views: 360
Posted By Doc_Wui

By the way, it's unrealistic to expect an ebike...

By the way, it's unrealistic to expect an ebike to last 10 years, although I have two with motors/electronics and batteries that are seven years old. They say batteries lose half their charge in that...
09-07-21, 05:42 PM
Replies: 10
Views: 360
Posted By Doc_Wui

Bromptom is a better folding bike, but that bag,...

Bromptom is a better folding bike, but that bag, and FWD. There's also a backstory on bikes that took off on their own, firmware recalls, and problems with Brompton trying to make a sophisticated...
09-06-21, 08:48 PM
Replies: 8
Views: 296
Posted By Doc_Wui

Your 36V10,2AH battery probably has 40 cells,...

Your 36V10,2AH battery probably has 40 cells, arranged in a 10x4 array. In battery talk, that's 10S-4P for 10 series groups and 4 parallel cells per group.

With a 2A charger, each cell gets 0.5A...
09-01-21, 07:51 PM
Replies: 6
Views: 327
Posted By Doc_Wui

They were selling those big DD motors in front...

They were selling those big DD motors in front and rear drive versions when I converted my first ebike in summer of 2015. However, I wanted the freewheeling of a geared motor, and all the veterans...
08-31-21, 09:29 PM
Replies: 10
Views: 352
Posted By Doc_Wui

Even if you have a hitch, there's homework to be...

Even if you have a hitch, there's homework to be done to ensure the hitch is capable, as well as any rack you buy. If a car is leased, why can't the hitch be removed when it comes tome to turn in the...
08-25-21, 10:58 PM
Replies: 10
Views: 528
Posted By Doc_Wui

That's a nice deal. If you stare at battery cases...

That's a nice deal. If you stare at battery cases on aliexpress.com, you can probably find some chinese seller selling it. Ypu can often find parts for the popular stuff. Otherwise, you could google...
08-25-21, 07:53 AM
Replies: 78
Views: 1,791
Posted By Doc_Wui

N=9.

N=9.
08-16-21, 11:29 AM
Replies: 38
Views: 1,177
Posted By Doc_Wui

Lithium packs will hold voltage thru a winter. I...

Lithium packs will hold voltage thru a winter. I keep them either outside on the deck or in my attached garage where it might get below freezing. They're at nominal voltage, which is 50% of...
08-16-21, 11:09 AM
Replies: 3
Views: 327
Posted By Doc_Wui

Batteries stored at full charge (like six weeks...

Batteries stored at full charge (like six weeks or more) have been shown to not last as long as batteries stored at 50%. For a 48V battery, 50% is 48 volts, and 100% is 54.6V. For that reason, it's...
08-15-21, 10:36 PM
Replies: 38
Views: 1,177
Posted By Doc_Wui

Cool. The Amish have decided electric bikes are...

Cool. The Amish have decided electric bikes are allowable in their lifestyle?.
08-15-21, 09:50 AM
Replies: 38
Views: 1,177
Posted By Doc_Wui

I would ignore Mr. Bolton. He would like to sell...

I would ignore Mr. Bolton. He would like to sell you a highly marked up controller and motor kit to replace the Rad fat tire motors. He is picking on Rad because they're the biggest target. Dozens of...
08-14-21, 02:38 PM
Replies: 34
Views: 1,281
Posted By Doc_Wui

I'm glad it worked out. Post a pic of the bike...

I'm glad it worked out. Post a pic of the bike out on your loop ride when you get a chance,
08-13-21, 10:19 PM
Replies: 5
Views: 414
Posted By Doc_Wui

Yeah, we wanna know if the dog had her own bike...

Yeah, we wanna know if the dog had her own bike or if she rode on back,
08-13-21, 10:14 PM
Replies: 22
Views: 823
Posted By Doc_Wui

My first conversion was a 1991 Steel Trek with a...

My first conversion was a 1991 Steel Trek with a rear motor. I added a suspension fork that I converted to thredless. If I wanted I could also put in a front caliper, even a hydraulic unit in that...
08-09-21, 08:48 AM
Replies: 7
Views: 415
Posted By Doc_Wui

You can get some ideas in this long thread. Many...

You can get some ideas in this long thread. Many people are using a low power TSDZ2 mid drive or a 36B BBS01 mid drive, Front motor is a little risky, because of fork breakage. Brakes no issue....
08-09-21, 08:32 AM
Replies: 5
Views: 410
Posted By Doc_Wui

If this is a 16S battery using 3.7V cells, it...

If this is a 16S battery using 3.7V cells, it will be 67.2V at fill charge, 59.2V when half charged, and a 60V controller will shut it down around 48V, which is 3V/cell.

You're only getting 24...
08-04-21, 01:34 AM
Replies: 20
Views: 592
Posted By Doc_Wui

I found the Des Plaines trail on a south end,...

I found the Des Plaines trail on a south end, where it starts, to be a lot of dirt,, not that well marked, and noisy as it runs under the tollway, Then to get to the north section, it's posted as a...
Forum: Folding Bikes
08-01-21, 06:51 PM
Replies: 7
Views: 634
Posted By Doc_Wui

I put a 6 speed freewheel on our Loop, but use...

I put a 6 speed freewheel on our Loop, but use the original derailleur and twist shifter. I put in a rear hubmotor and needed a little more space. The original brake levers are quite short and were...
Forum: Folding Bikes
07-31-21, 12:49 PM
Replies: 21
Views: 1,218
Posted By Doc_Wui

Red loctite breaks down with heat, 500F or 250C....

Red loctite breaks down with heat, 500F or 250C. Needs a torch.

I never liked Vello's grandiose claims about riding without charging. Figured they couldn't be trusted.
07-30-21, 09:20 AM
Replies: 849
Views: 952,305
Posted By Doc_Wui

Latest conversion in progress. Came across a used...

Latest conversion in progress. Came across a used bafang front motor/wheel/tire for $45. They were taken off an Uber bikeshare ventture that failed, so they are good motors. I've not owned a cruiser...
07-27-21, 07:46 PM
Replies: 15
Views: 870
Posted By Doc_Wui

Okay. Flat road with a trailer? Better get a...

Okay. Flat road with a trailer? Better get a mirror and point it right at the dogger. He won't feel the load, and will worry that the trailer fell off,
07-26-21, 06:55 AM
Replies: 26
Views: 1,033
Posted By Doc_Wui

I have never experienced it, but owners of the...

I have never experienced it, but owners of the RadCity ebike, which is a direct drive rear hub motor capable of regeneration, report than when they have it set up for full regen, they have to pedal...
07-25-21, 03:11 PM
Replies: 15
Views: 870
Posted By Doc_Wui

Pittsburgh has some huge hills. You cannot expect...

Pittsburgh has some huge hills. You cannot expect to throttle up them without helping the bike out with pedalling and being in low gear. But the E-sparrow is single speed bike with a 250W Bafang. I...
07-25-21, 03:04 PM
Replies: 26
Views: 1,033
Posted By Doc_Wui

One of the early developers of regenerative...

One of the early developers of regenerative braking, justin Le of Grin Technologies, has said one can get up to 10% recovery in hilly regions. Nice if you live there and have to use brakes to control...
Forum: Folding Bikes
07-23-21, 10:42 PM
Replies: 22
Views: 1,601
Posted By Doc_Wui

I bought our Nova and 8FS in 2017 for $279 and...

I bought our Nova and 8FS in 2017 for $279 and $359 respectively, if I recall my pricing. Price inflation, pandemic, increased shipping costs. etc. make the current pricing understandable, but not...
07-23-21, 10:25 PM
Replies: 30
Views: 1,847
Posted By Doc_Wui

I think most of the steerers can be changed. The...

I think most of the steerers can be changed. The quills om threadless systems can be changed to threaded with quill adapters. Then you attach your stem extension to this or your standard threadless...
07-19-21, 06:42 AM
Replies: 30
Views: 1,847
Posted By Doc_Wui

Two kinds of electric folding ebikes. Fat tire...

Two kinds of electric folding ebikes. Fat tire and skinny tire. There's a thirty pound difference between these two that I own The wheels on the bigger bike are each about 2 pounds heavier. The...
07-17-21, 11:55 AM
Replies: 18
Views: 964
Posted By Doc_Wui

No, BidbadJohn is currently asking a question...

No, BidbadJohn is currently asking a question about a noisy motor, so he's still here.
07-17-21, 07:56 AM
Replies: 20
Views: 19,054
Posted By Doc_Wui

It was here. And when I looked on youtube at a...

It was here. And when I looked on youtube at a conversion using the same kits, they were quite fast, easily hitting 30 mph on lead-acid batteries. AT the time I had paid $550 USD for a bafang BBS02...
07-16-21, 09:10 AM
Replies: 20
Views: 19,054
Posted By Doc_Wui

There are still kits that use the Unite brushed...

There are still kits that use the Unite brushed MY1018 motors. These used to be $75 kits. Currie IZIP's used to run a similar configuration on their ebikes. I've even seen a mid motor rig using this...
07-15-21, 07:45 PM
Replies: 20
Views: 19,054
Posted By Doc_Wui

For brushed controllers, what they do is chop the...

For brushed controllers, what they do is chop the DC voltage into a square wave pulse, and adjust the pulse widths. The motor sees an average of that, so by changing the width of the pulse. you can...
07-14-21, 10:26 AM
Replies: 15
Views: 848
Posted By Doc_Wui

A poor guy died in SIngapore a month ago when his...

A poor guy died in SIngapore a month ago when his "PMD" caught fire. He was not the first to be killed in that nation.
...
07-12-21, 09:53 PM
Replies: 8
Views: 835
Posted By Doc_Wui

The ebike tester has a lot of flashing lights but...

The ebike tester has a lot of flashing lights but they have to flash in certain patterns, With the Hall sensor tester, you turn the wheel backward slowly and the three LED's need to flicker in...
07-11-21, 09:33 PM
Replies: 21
Views: 950
Posted By Doc_Wui

If it were me, I'd ask my insurance agent. Your...

If it were me, I'd ask my insurance agent. Your insurance company will be going after the other driver's company to recover its costs anyway.
07-11-21, 12:03 PM
Replies: 20
Views: 982
Posted By Doc_Wui

We discovered ebikes when I bought my first new...

We discovered ebikes when I bought my first new regular bike since 1975. Bought an ebike for my wife, and converted an old Trek to electric. So I had the Trek and my new bike to ride. and I tried to...
07-08-21, 08:40 AM
Replies: 7
Views: 524
Posted By Doc_Wui

I think it's just a futuristic bike design. Is...

I think it's just a futuristic bike design. Is that a twist shifter on the right handlebar or is it a twist throttle?

There's no visible motor in the front wheel. There's no visible motor in the...
07-05-21, 02:48 PM
Replies: 21
Views: 1,290
Posted By Doc_Wui

You have to get the bike first, so you know what...

You have to get the bike first, so you know what kind of fork it uses.

[ ] 1. Threaded 1-1/8"
[ ] 2. Threadless 1-1/18"
[ ] 3. Threaded 1"

It's probably 2. Whichever one it is, verify the...
07-05-21, 08:13 AM
Replies: 21
Views: 1,290
Posted By Doc_Wui

Convert to a Cr-Moly fork. About a hundred...

Convert to a Cr-Moly fork. About a hundred dollars.
07-04-21, 11:37 PM
Replies: 21
Views: 1,290
Posted By Doc_Wui

I would not recommend a motor on an alloy fork,...

I would not recommend a motor on an alloy fork, especially a suspension fork, Nor would I want to hack into a sweet little bike with a belt/IGH to put in a mid motor. Friction drives roll a cylinder...
07-04-21, 10:38 AM
Replies: 9
Views: 1,160
Posted By Doc_Wui

If it's the three bullets and the 2x3 white...

If it's the three bullets and the 2x3 white connector. the pins on the latter come out if you squeeze the retaining barb with a needle nose. Then you can slip it thru your axle.

But wait til you...
07-04-21, 10:32 AM
Replies: 29
Views: 1,102
Posted By Doc_Wui

The higher temperatures for lead free solder is...

The higher temperatures for lead free solder is my problem. The leaded stuff allows my marginal solder gear to work better. I took home a 16oz roll of Kestor 60/40 from work 35 years ago, and it...
07-04-21, 09:47 AM
Replies: 29
Views: 1,102
Posted By Doc_Wui

I have a Weller WES51 station, a Weller 8200, and...

I have a Weller WES51 station, a Weller 8200, and a Harbor Fright solder gun, The Harbor doesn't sell replacement tips. expecting us to replace the whole thing, but a Weller 7135 fits, except the HF...
06-28-21, 11:26 AM
Replies: 6
Views: 754
Posted By Doc_Wui

Those two frames are not suited for the strap-on...

Those two frames are not suited for the strap-on batteries usually seen on converted ebikes. You'll ruin the lines, if you care about looks., Given that they are expensive frames, seems like you can...
06-26-21, 08:14 PM
Replies: 71
Views: 7,510
Posted By Doc_Wui

I've owned several miatas, and also two SUV's....

I've owned several miatas, and also two SUV's. The fat tire bike is like a big SUV. A light bike is like the miata There is no swiss army knife when it comes to bikes. You need the right one for the...
06-26-21, 10:19 AM
Replies: 38
Views: 1,124
Posted By Doc_Wui

https://cimg2.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg2.ibsrv.net/gimg/bikeforums.net-vbulletin/564x744/bike_07e72831710468a54d611d1d0beee529bfd295ea.jpg
06-26-21, 10:04 AM
Replies: 71
Views: 7,510
Posted By Doc_Wui

You're right. Two hydraulic brake cables, Two...

You're right. Two hydraulic brake cables, Two brake wires, Two shifter cables. One throttle wire, One display wire. That's eight cables, There's a fix for that., called spiral wrap. I'll get to it.
Forum: Folding Bikes
06-24-21, 03:13 PM
Replies: 2,365
Views: 424,752
Posted By Doc_Wui

Downtube website still working for me. ...

Downtube website still working for me.
https://www.downtube.com/downtube-nova-lightweight-folding-bike/
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