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Search: Posts Made By: Doc_Wui
Showing results 1 to 50 of 873
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01-24-20, 12:48 PM
Replies: 5
Views: 105
Posted By Doc_Wui

I remember thinking that the MXUS XF15 is a...

I remember thinking that the MXUS XF15 is a pretty strong motor for a 20" wheel and it is bigger than what you linked. Here's a drawing off aliexpress.

It's a little wider than the typical 135mm...
01-24-20, 11:01 AM
Replies: 5
Views: 105
Posted By Doc_Wui

By the way, you call it an XF15, but I suspect...

By the way, you call it an XF15, but I suspect you have the wrong diagram here. I looked up one of those motors and believe the flange diameter was around 140. Better wait til you get it in your...
01-23-20, 10:08 AM
Replies: 5
Views: 105
Posted By Doc_Wui

EDIT: These are from your link, but I don't...

EDIT: These are from your link, but I don't believe this is for the XF15.
My Take
A. Flange Width 44
B. Flange Diameter 128
C. Dishing 3
Use 135mm and 3Mm for the last two. Also single cross....
01-22-20, 09:00 PM
Replies: 7
Views: 148
Posted By Doc_Wui

MXUS XF15 is a much bigger motor than I've tried...

MXUS XF15 is a much bigger motor than I've tried on a 20" wheel. I've used Q100's, which are about 100mm in diamter. The X15 is 140/145mm. It should fly.

Anyway, a good rim for a folder is is the...
01-22-20, 05:35 PM
Replies: 2
Views: 109
Posted By Doc_Wui

Like the website said, distance between the...

Like the website said, distance between the middle of the axle and the middile of the motor (between the flanges) is dishing offset. If I hadn't already laced the rim, it would be a better picture.
...
01-19-20, 01:46 PM
Replies: 2
Views: 168
Posted By Doc_Wui

Wow. These are new to me. These? ...

Wow. These are new to me. These?
https://www.osnpower.com/super-long-cycle-life-lithium-titanate-battery-cells-2-4v-10ah_p26.html

A 25S4p, at 510 grams per cell, is 51Kg or 112 pounds. A 20S-10P...
Forum: Folding Bikes
01-18-20, 10:39 AM
Replies: 341
Views: 61,967
Posted By Doc_Wui

I ran across this blog where the writer claims...

I ran across this blog where the writer claims some Tyrells and Terns have the aluminum welds ground and painted for aethetics.Well, maybe they all do that now.
...
01-17-20, 09:47 AM
Replies: 30
Views: 908
Posted By Doc_Wui

As I got older, I learned to hate winter. But I...

As I got older, I learned to hate winter. But I missed my chance to move south after I retired, choosing to hang around the grandkids. Buy them bikes and stuff. You know. Teach them N is a big big...
01-17-20, 09:13 AM
Replies: 8
Views: 206
Posted By Doc_Wui

Aha, I figured it out. I measured wrong. I took...

Aha, I figured it out. I measured wrong. I took the width of the freewheel as the dish, and din;t include any offset on the other side.

The last wheel I measured was three years ago and I did it...
01-15-20, 01:24 AM
Replies: 8
Views: 206
Posted By Doc_Wui

Yes, a fat bike front droput is 135mm and if I...

Yes, a fat bike front droput is 135mm and if I had a standard hub, the flanges would probably be 120 mm apart. This being a motor, the hub flanges are only 50mm. And in the no dish position, both...
01-14-20, 06:40 PM
Replies: 10
Views: 348
Posted By Doc_Wui

dlikes is exactly right here. The reputable ebike...

dlikes is exactly right here. The reputable ebike battery makers base their AH on the capacity of the cells in the packs. The disputable battery guys just make it up. I've seen packs advertised with...
01-14-20, 05:26 PM
Replies: 8
Views: 206
Posted By Doc_Wui

No dishing for my fatbike rim?

My other winter project is building a front wheel with electric hub motor for a 20"x3: fat tire e-bike. I have to use a motor from a regular ebike with a 135mm axle, which is the drop out size on the...
01-13-20, 10:39 PM
Replies: 4
Views: 191
Posted By Doc_Wui

Saw your picture in the other forum, This is...

Saw your picture in the other forum, This is between the display and the controller?

Which side was damaged the most? Cable coming out of controller or harness toward the handlebars? The harness...
01-11-20, 11:11 PM
Replies: 10
Views: 273
Posted By Doc_Wui

Sorry. The title was worded poorly or my post...

Sorry. The title was worded poorly or my post was not clear. Fixed the title.

The steerer tube on the fork I wanted was 1/2" too short. I will learn to like this bike w/o that fork.
01-11-20, 10:46 PM
Replies: 2
Views: 197
Posted By Doc_Wui

Your battery is well out of balance. Normally,...

Your battery is well out of balance. Normally, cells should be within 0.100 volt of each other. The good news is that your worst looking cells are only at 3.20 volts.THese may be the cells that power...
01-11-20, 01:22 AM
Replies: 4
Views: 191
Posted By Doc_Wui

You can buy a new but different display and...

You can buy a new but different display and controller for under $100 (not from rad bikes) and generally replace everything, It's a bit of rewiring, but probably less money than buying the Rad...
01-10-20, 09:25 PM
Replies: 10
Views: 273
Posted By Doc_Wui

Thanks for your wisdom. It makes excellent sense....

Thanks for your wisdom. It makes excellent sense.

My little friend is my Milwaukee Sawzall. I tend to grab it and think later.

We already ride Downtube 8FS (full suspension) and Nova (none) and...
01-10-20, 02:18 PM
Replies: 10
Views: 273
Posted By Doc_Wui

Steerer too short. Cut frame? Solved: Dumb idea..

I found a 1" suspension fork tor my Schwinn Loop, but the threaded steerer tube is too short at 6 5/8", while the bike is about 7" from cup to cup edge. I know these inexpensive forks aren't that...
01-06-20, 11:28 AM
Replies: 44
Views: 2,377
Posted By Doc_Wui

Hi TinyBear, I see you're getting advice over at...

Hi TinyBear, I see you're getting advice over at the EBR (Expensive Bike Ramblings). forum.
If you're looking to spend $1900CDN on a fat tire bike, I'd suggest you try and compare them to the...
01-05-20, 08:09 PM
Replies: 2
Views: 201
Posted By Doc_Wui

Nice little battery in the Xtreme Baja, but no...

Nice little battery in the Xtreme Baja, but no way you'll get a 40 cell Vruzend to fit in the frame, much less fit in the case.. Those things are like trees. (Lots of air in a tree unless you try...
01-03-20, 11:18 PM
Replies: 170
Views: 15,183
Posted By Doc_Wui

Not too old to ride, but maybe too old to get off...

Not too old to ride, but maybe too old to get off the darn bike. I was trying to dismount last week when my pants got snagged on the rear rack. That wasn't so bad, but I had stopped on a pier next to...
01-03-20, 11:13 PM
Replies: 13
Views: 1,065
Posted By Doc_Wui

I don't check out the 50+ forum much, and the...

I don't check out the 50+ forum much, and the last time I was here, I heard about the hit and run on Mr. Jordon. So on this subsequent visit, I am glad it's worked out so far for the better.
01-03-20, 06:48 PM
Replies: 88
Views: 2,552
Posted By Doc_Wui

Good thread, in that I got a better appreciation...

Good thread, in that I got a better appreciation of bike havoc in NYC.
01-03-20, 11:22 AM
Replies: 14
Views: 678
Posted By Doc_Wui

It's about money. Must be too much money coming...

It's about money. Must be too much money coming out of those ebike tickets in NYC and salvage bikes sales (a lot of them are impounded immediately and never reclaimed).
01-01-20, 11:41 PM
Replies: 11
Views: 357
Posted By Doc_Wui

Here's the link,. ...

Here's the link,.
https://www.indiegogo.com/projects/capri-e-bikes#/

They propose a 35 pound (16 Kilo) bike with 250W hub motor and 36V 7AH battery for $1350 USD. The battery, motor, and...
Forum: Folding Bikes
01-01-20, 07:04 PM
Replies: 341
Views: 61,967
Posted By Doc_Wui

Is that really true that Tern is the only vendor...

Is that really true that Tern is the only vendor with frames breaking? I would expect they are having their bikes built by an OEM, and then there would be other folders that use that supplier..
Forum: Folding Bikes
12-31-19, 10:21 AM
Replies: 341
Views: 61,967
Posted By Doc_Wui

Yikes. Glad you didn't get hurt, hpr.

Yikes. Glad you didn't get hurt, hpr.
12-24-19, 10:49 AM
Replies: 8
Views: 406
Posted By Doc_Wui

Tesla gets their battery longevity by derating...

Tesla gets their battery longevity by derating the cells. If the ebike world is ready to do the same, they can have long tived batteries too. Just charge to 80% of capacity and recharge at 40%....
12-24-19, 10:40 AM
Replies: 19
Views: 484
Posted By Doc_Wui

The Q100 motors use a 9 pin modular connector,...

The Q100 motors use a 9 pin modular connector, along with a extension cable that terminates with 3 bullet connectors and 2x3 plug for the sensors. If they don't include the cable any more, then you...
12-23-19, 06:04 PM
Replies: 19
Views: 484
Posted By Doc_Wui

The Tern at 74mm can't accept many motors, and t...

The Tern at 74mm can't accept many motors, and t wouldn't do another front drive kit anyway. The added risk of fork breakage outweighs any convenience, plus front drives tend to slip on wet surfaces....
Forum: Folding Bikes
12-22-19, 01:28 PM
Replies: 29
Views: 1,657
Posted By Doc_Wui

I almost bought it on impulse, but with the cost...

I almost bought it on impulse, but with the cost of renewing Costco membership, and sales tax, not such a great bargain. No N+1 this month. Already own four 20 inchers.


.
12-21-19, 12:10 PM
Replies: 16
Views: 672
Posted By Doc_Wui

Here's what my BBS02 draws in max currents for...

Here's what my BBS02 draws in max currents for various PAS levels per my wattmeter:
PAS 1: 3.1 amp
PAS 2: 4,7 amp
PAS 3: 6.7 amp - throttle at this level drew 15.9 amp
PAS 9: 15.3 amps

You...
12-20-19, 11:07 PM
Replies: 7
Views: 414
Posted By Doc_Wui

That is true. It's not a one way trip to convert...

That is true. It's not a one way trip to convert to an ebike. Unless you did what I did, not having a $4 chain breaker, I cut off the front derailleur instead of breaking the chain and unlooping it.
12-20-19, 11:04 PM
Replies: 5
Views: 318
Posted By Doc_Wui

Many ebikes, especially folders, are intended to...

Many ebikes, especially folders, are intended to be ridden with help from the rider. There's not a lot of room for batteries on a folder, and while the seat post is pretty elegant, it makes for an...
12-20-19, 11:45 AM
Replies: 7
Views: 414
Posted By Doc_Wui

I would do the newer bike. I've read a few posts...

I would do the newer bike. I've read a few posts where owners complain about the lack of power on the Tong Sheng, but have never seen that said about the Bafang. .I have the BBS02 since 2016. Plenty...
Forum: Folding Bikes
12-19-19, 10:04 PM
Replies: 29
Views: 1,657
Posted By Doc_Wui

Nice. That price would be worth rejoining Costco....

Nice. That price would be worth rejoining Costco. I never used my prior memberships much.
.
12-16-19, 09:18 AM
Replies: 8
Views: 3,813
Posted By Doc_Wui

The original question was asked about 10 years...

The original question was asked about 10 years ago. Battery technology has changed. The electric vehicle world is using the more volatile lithium chemistry, with layers of electronic safe guards...
12-13-19, 04:24 AM
Replies: 7
Views: 424
Posted By Doc_Wui

Two things can go wrong with PAS.First is magnet...

Two things can go wrong with PAS.First is magnet too far away. Yours looks OK. Other is the disk is on backwards.Sometimes when you do that, the PAS will work if the pedals spin backwards.There's...
12-08-19, 12:48 AM
Replies: 9
Views: 416
Posted By Doc_Wui

Best of luck to you then. I'm sure you will...

Best of luck to you then. I'm sure you will improve in stamina!
12-07-19, 11:25 PM
Replies: 3
Views: 245
Posted By Doc_Wui

It's in the nature of ebike batteries to spark...

It's in the nature of ebike batteries to spark when they are connected to the controller. Doesn't matter if the bike was turned on or off. The controller has some capcitance in it that will take a...
12-07-19, 06:22 PM
Replies: 9
Views: 416
Posted By Doc_Wui

Go for a longer ride this weekend! See if the...

Go for a longer ride this weekend! See if the battery hold up.

Predicted high of 59F for 12/8/2018 in Paducah, KY? Wish we had that here. It was a high of 39F. I did ride today. Everything warm...
Forum: Commuting
12-06-19, 01:11 PM
Replies: 34
Views: 11,627
Posted By Doc_Wui

I bought the V1 for $!49 in early 2018 from...

I bought the V1 for $!49 in early 2018 from Nashbar. Wish I had bought two of them. It continures to be a nice riding bike for me.,
12-05-19, 09:47 PM
Replies: 19
Views: 968
Posted By Doc_Wui

I looked a little harder today and found a...

I looked a little harder today and found a chrome-moly7 (steel) 20" fork with disk brake capability and a really long stem. I ordered it.
12-05-19, 03:07 PM
Replies: 19
Views: 968
Posted By Doc_Wui

Manufactured ebikes will generally have the right...

Manufactured ebikes will generally have the right kind of forks for a fronnt wheel mount, Home built ebikes should avoid them unless the builder understands where you go wrong. This picture was taken...
12-05-19, 01:03 PM
Replies: 9
Views: 416
Posted By Doc_Wui

Enjoy!

Enjoy!
12-03-19, 11:01 AM
Replies: 28
Views: 1,208
Posted By Doc_Wui

There was a discussion about getting a battery to...

There was a discussion about getting a battery to Hawaii in another forum, I recall that vendors like Bike Flights were charging a fee more than the original cost of the battery to ship it by air....
11-23-19, 02:22 PM
Replies: 15
Views: 826
Posted By Doc_Wui

I bought an ecotric fat tire folding bike for...

I bought an ecotric fat tire folding bike for $779 earlier this year on amazon. I have no complaints, It's a nice bike, but I should have bought a regular 20" folder, because fat tires are kind of...
11-23-19, 12:55 PM
Replies: 28
Views: 1,208
Posted By Doc_Wui

I heard they were out of business in the US....

I heard they were out of business in the US. Getting rid of inventory. Repair parts?
11-22-19, 05:00 PM
Replies: 15
Views: 826
Posted By Doc_Wui

Might be a Euro spec with a speed limiter to 15...

Might be a Euro spec with a speed limiter to 15 mph. Might be a typo on top speed. Often, there is a little wire you disconnect to remove a speed limit. But don't take my word for it. I said "often"....
11-14-19, 01:53 PM
Replies: 10
Views: 633
Posted By Doc_Wui

Had to use it like that. Quick setup to run 2...

Had to use it like that. Quick setup to run 2 motors on my fatbike and too cold to do something more.elegant in the garage Only had throttle for the front motor and it was always needed to get...
Showing results 1 to 50 of 873
 


 
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