Search: Posts Made By: Doc_Wui
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06-23-19, 07:50 AM
Replies: 4
Views: 589
Posted By Doc_Wui

It's expensive today ($1299 with smallest...

It's expensive today ($1299 with smallest battery pack) in my opinion, but you got a good price with the early backers slot, Lin. Still it will appeal to the folks that want an ebike w/o needing...
06-21-19, 07:04 AM
Replies: 4
Views: 407
Posted By Doc_Wui

I figure you are talking about the disk brakes?...

I figure you are talking about the disk brakes? You go to a bike shop and see if they carry anything that fits. If not, you or the shop can replace the caliper with a Shimano or Textro unit that uses...
06-19-19, 09:12 PM
Replies: 5
Views: 569
Posted By Doc_Wui

I bought a $79 Walmart fatbike once. Replaced...

I bought a $79 Walmart fatbike once. Replaced everything but the steel frame, but the frame is very strong. Forks. Handlebars. Shifters. Derailleur. Crank. Pedals, Pedal arms. Brakes. Tires. Tubes....
Forum: Folding Bikes
06-18-19, 10:42 PM
Replies: 12
Views: 1,047
Posted By Doc_Wui

The Big Apples do roll well. This has never...

The Big Apples do roll well. This has never happened before, but coasting down a hill on our usual ride, my wife kept up with me instead of falling back as she usually does. She said she felt much...
06-18-19, 10:35 PM
Replies: 7
Views: 771
Posted By Doc_Wui

Whether it's my GT Transeo, or one of my ebikes,...

Whether it's my GT Transeo, or one of my ebikes, I average 12.7 mph, so 15 mph is a bit low. If I was careless and coasted down a hill, boom, a $100 fine for 17 mph..

I was taking a break and...
Forum: Folding Bikes
06-17-19, 09:28 PM
Replies: 12
Views: 1,047
Posted By Doc_Wui

Schwalbe tires arrived today. Went on easily,...

Schwalbe tires arrived today. Went on easily, except for me putting one on backwards. Took the opportunity to grease the bearings too.

Did a quick ride before it got dark. All seems fine, except...
Forum: Folding Bikes
06-15-19, 04:29 PM
Replies: 12
Views: 1,047
Posted By Doc_Wui

No fenders here, so I will try the Schwalbe Big...

No fenders here, so I will try the Schwalbe Big Apple.
Forum: Folding Bikes
06-15-19, 12:17 PM
Replies: 12
Views: 1,047
Posted By Doc_Wui

Wider tire for rails-to-trails gravel

My wife's Downtube 8FS has 20x1.25" tires, while my Nova is a 20 x 1.5". Actual tire widths are 1.41" and 1.56". Rims are either .85" or 1/0". We did some packed gravel on the Illinois Prairie...
Forum: Folding Bikes
06-07-19, 09:25 PM
Replies: 9
Views: 1,880
Posted By Doc_Wui

I am using the the Q100H from Bmsbattery.com on...

I am using the the Q100H from Bmsbattery.com on our two folders, At ebikes.ca, you can get a Bafang G311 motor on a 20". wheel, However, I believe that you can buy a inexpensive folder, like the...
06-03-19, 09:51 AM
Replies: 15
Views: 2,217
Posted By Doc_Wui

In the UK, with what I consider a restrictive...

In the UK, with what I consider a restrictive speed limit on commercial ebikes, you might want to consider putting a motor on an existing bike. There are a number of shops that will do that for you,...
06-02-19, 10:17 AM
Replies: 9
Views: 569
Posted By Doc_Wui

I bought a cheap 1" threaded suspension fork for...

I bought a cheap 1" threaded suspension fork for my Trek 800, but needed about 4 cm more threads to fit the frame. I couldn't cut the plated steel, so I converted to a 1" threadless mount, as I had...
06-01-19, 06:25 AM
Replies: 14
Views: 2,013
Posted By Doc_Wui

A 500W geared motor might be a better fit for...

A 500W geared motor might be a better fit for Denver hills, but if you're happy getting the workout, the Rad direct drive motor should work.
...
05-31-19, 12:29 PM
Replies: 5
Views: 1,678
Posted By Doc_Wui

I've not had any experience with this kit, but if...

I've not had any experience with this kit, but if you have a steel front fork and a water bottle fitting, this front drive kit seems easy to install. I would add a hose clamp under the battery to...
05-31-19, 07:30 AM
Replies: 5
Views: 1,678
Posted By Doc_Wui

SBarry, the kits are just as legit as bluetooth...

SBarry, the kits are just as legit as bluetooth speaker you mount on the handlebars. Sometimes the speaker falls off. Othertimes it can't find your source. Batteries run down. When working right,...
05-31-19, 07:16 AM
Replies: 25
Views: 3,239
Posted By Doc_Wui

If you ever had a hub generator on a regular...

If you ever had a hub generator on a regular bike, you felt the drag when it was pivoted onto the tire to run the lights, Please discard the idea that you get more energy from it that either your...
05-30-19, 06:56 PM
Replies: 25
Views: 3,239
Posted By Doc_Wui

Check with Marissa. I do think the hub generator...

Check with Marissa. I do think the hub generator would use more energy than it produces.
Marissa's Solar Bike Adventure ? Marissa Muller...
Forum: Folding Bikes
05-30-19, 06:53 PM
Replies: 17
Views: 2,131
Posted By Doc_Wui

This is one of the smaller motors one can buy for...

This is one of the smaller motors one can buy for a DIY ebike and would add about 5 pounds. I put these in our folders. They weigh about 35 and 40 pounds.
...
Forum: Folding Bikes
05-30-19, 06:23 PM
Replies: 9
Views: 1,880
Posted By Doc_Wui

The BBS02 normally sits parallel to the ground on...

The BBS02 normally sits parallel to the ground on most bikes, as the lower downtubes usually swoop upward with sufficient angle to allow that. I have one on a regular mountain bike,

If this...
05-28-19, 07:10 PM
Replies: 5
Views: 1,654
Posted By Doc_Wui

Yes, a lot of inexpensive ebikes have 12G spokes....

Yes, a lot of inexpensive ebikes have 12G spokes. Hard to maintain tension. They sell double butted spokes which are 13G at the elbow and 14G at the nipple. They will give good tension. If the motor...
05-28-19, 06:00 PM
Replies: 113
Views: 12,761
Posted By Doc_Wui

Last August, I found a debit card on my local...

Last August, I found a debit card on my local bike path, the kind you load up with cash and then use like a credit card. I dropped it off at a little bait shop where the shop keeper said two ladies...
05-28-19, 05:42 PM
Replies: 5
Views: 681
Posted By Doc_Wui

Riding my other bike in Chicago over the weekend...

Riding my other bike in Chicago over the weekend with hundreds of other bikes around me, I noted quite a few narrow stems on other bikes. Guess I'll not worry.

I replaced another fork last year,...
05-25-19, 01:23 PM
Replies: 5
Views: 681
Posted By Doc_Wui

Replaced steel fork with alloy. Strength?

I didn't realize my old fork was steel when I replaced it with a alloy suspension fork. What concerns me is that I wasn't thinking and cut the new fork to the same stem length. It's a 1 1/8"...
05-25-19, 12:18 AM
Replies: 14
Views: 2,324
Posted By Doc_Wui

I knew the article was from Viet Nam, but In the...

I knew the article was from Viet Nam, but In the USA/Europe, it's mainly scooters that run SLA batteries, and some folks on trikes, They are too heavy for bikes if you want decent range, and do't...
05-24-19, 09:14 AM
Replies: 14
Views: 2,324
Posted By Doc_Wui

You know, this seems to be written more for lead...

You know, this seems to be written more for lead acid batteries used in cars and a few ebikes, but people who use lithium batteries should follow other instructions.
05-21-19, 02:29 PM
Replies: 13
Views: 2,399
Posted By Doc_Wui

A dead scooter, the customer goes hungry. A dead...

A dead scooter, the customer goes hungry. A dead ebike, he might not get hot food, but you can still pedal to his address.
05-21-19, 06:47 AM
Replies: 18
Views: 2,347
Posted By Doc_Wui

Couldn't convert a bike cheaper than these two on...

Couldn't convert a bike cheaper than these two on sale from Walmart. It might not be the bike that a road rider wants, but should be fine for neighborhood riding,
...
05-20-19, 05:12 PM
Replies: 20
Views: 1,553
Posted By Doc_Wui

A mid drive kit is more expensive than the hub...

A mid drive kit is more expensive than the hub motor, at $400-600, Since you want to use your 36V battery, that will probably limit you to the less powerful kits. I think the biggest obstacle is...
05-19-19, 10:29 AM
Replies: 20
Views: 1,553
Posted By Doc_Wui

The first seller probably sent you a fat bike kit...

The first seller probably sent you a fat bike kit by mistake. Rim would be 2-3/4 inch wide, which fits your description, and motor would be over 5 inches wide at the axles.

Amazon will back you...
05-18-19, 08:17 PM
Replies: 20
Views: 1,553
Posted By Doc_Wui

The amazon kit is pretty much the same as the...

The amazon kit is pretty much the same as the ebay one. I read the reviews. You always should, with amazon. Also, amazon has a tricky return policy with third party vendors. If you ever bought a bike...
05-18-19, 05:25 PM
Replies: 20
Views: 1,553
Posted By Doc_Wui

I think your handyman is thinking of something...

I think your handyman is thinking of something else. You need both length and thread to define a screw.

The diameter of the axle on a regular bike is 10 mm. Most ebike axles are usually 12mm. but...
05-18-19, 08:55 AM
Replies: 36
Views: 3,813
Posted By Doc_Wui

The guy chose a Bafang BBS02. Lots of moving...

The guy chose a Bafang BBS02. Lots of moving parts, and the electronics are next to the motor. Wear will get the gears and bearings over time, as it did. Heat kills the controller for users who run...
05-17-19, 08:59 PM
Replies: 20
Views: 1,553
Posted By Doc_Wui

That Trifecta doesn't seem to be sold by Worksman...

That Trifecta doesn't seem to be sold by Worksman these days, I suppose it looks like this. Caliper brake up front? Does your fold?...
Forum: Folding Bikes
05-17-19, 07:01 AM
Replies: 807
Views: 197,052
Posted By Doc_Wui

I believe you want a wheel that works with rim...

I believe you want a wheel that works with rim brakes and takes a cassette, not a freewheel. Maybe you can find a 36 spoke wheel too, for added strength,
05-17-19, 06:37 AM
Replies: 5
Views: 1,285
Posted By Doc_Wui

Since it is a mid drive, and you probably have...

Since it is a mid drive, and you probably have gears on your bike,you can always downshift to make up for less torque from the motor if you limit the max current. .

I suspect your problem with...
05-15-19, 07:56 PM
Replies: 20
Views: 1,553
Posted By Doc_Wui

If the motor on the kit you returned was designed...

If the motor on the kit you returned was designed for a bigger fork, then I don't understand how washers would male it fit on a bike like the one below.

Let's see a link to that kit you mentioned...
05-15-19, 11:07 AM
Replies: 41
Views: 2,555
Posted By Doc_Wui

We haven't either here in N. Illinois since last...

We haven't either here in N. Illinois since last August. I miss it, but we were in SW Florida in January. Wow your winter weather is so nice. It was 80 on New Years Day in Tampa, and I know I walked...
05-14-19, 06:19 PM
Replies: 20
Views: 1,553
Posted By Doc_Wui

You need to remove the front wheel and measure...

You need to remove the front wheel and measure both the inside and outside, edge to edge. Now 5 inches is 125 mm, So my guess is you have 100-110 mm wide forks. If you have 100mm, everything fits.
...
05-13-19, 06:04 PM
Replies: 4
Views: 880
Posted By Doc_Wui

Most e-bikes you buy and e-bikes you build are...

Most e-bikes you buy and e-bikes you build are treated like bicycles in Illinois and can go everywhere bikes go, except on sidewalks. This link is close enough....
05-12-19, 05:07 PM
Replies: 20
Views: 1,553
Posted By Doc_Wui

In general, most front forks for bikes are 100mm...

In general, most front forks for bikes are 100mm wide. Some smaller folders are only 80mm. Many fatbikes are 135 mm wide. You're the only person who can tell us tell us how wide your fork is, Measure...
05-11-19, 12:25 PM
Replies: 20
Views: 1,704
Posted By Doc_Wui

I had no idea New Jersey had ebikes in a state of...

I had no idea New Jersey had ebikes in a state of limbo. Was reading about a lady who had 12 tickets issued to her ebike for being illegal by local cops.

The bill making them legal is on your NJ...
05-11-19, 12:14 PM
Replies: 20
Views: 1,704
Posted By Doc_Wui

$549. No throttle, On/offswitch, I did say...

$549. No throttle, On/offswitch, I did say throttle, but I didn't see the 20" option. Thanks for the correction!

Add $489 for the Dahon Vybe D7. Close to the OP budget, and definitely a better...
05-11-19, 10:51 AM
Replies: 20
Views: 1,704
Posted By Doc_Wui

Hilltoppers are certainly not hard to install,...

Hilltoppers are certainly not hard to install, but starting at $799 with only a throttle and you need a bike, prove my premise, which is that I cannot convert an ebike for less than what it costs to...
05-09-19, 06:31 AM
Replies: 36
Views: 3,813
Posted By Doc_Wui

For $335 you could replace the BBS02 but it will...

For $335 you could replace the BBS02 but it will wear out again.

The 1000W direct drives won't climb the hills as well as the BBS02, but probably won't wear out with no moving parts. Less like a...
05-08-19, 06:34 PM
Replies: 20
Views: 1,704
Posted By Doc_Wui

Micah Toll has fairly good credibility. He has...

Micah Toll has fairly good credibility. He has written some good articles on ebikes, sells a battery kit, etc, so if he likes this bike, I believe him. Disclaimer, I've never seen one....
05-07-19, 09:34 AM
Replies: 36
Views: 3,813
Posted By Doc_Wui

The Bafang BBS02 might go a little longer with...

The Bafang BBS02 might go a little longer with periodic lubrication. I've seen pics of bearings wearing out. The nylon gears will soften if one overheats the motor. Mine doesn't get much riding time,...
05-06-19, 11:56 AM
Replies: 12
Views: 2,001
Posted By Doc_Wui

Justin Le, who own Grin Ebikes, has numbers that...

Justin Le, who own Grin Ebikes, has numbers that show regen gets you 10% more battery in hill country, He is pretty credible. Last year, he competed in a solar bike race where they started in France,...
05-05-19, 11:28 AM
Replies: 4
Views: 1,091
Posted By Doc_Wui

I just couldn't convince myself there's 200 watt...

I just couldn't convince myself there's 200 watt hours in that unit. I finally remember why. The people that market these things add up the amp-hours of all the internal cells. That inflates the true...
05-05-19, 06:16 AM
Replies: 4
Views: 1,091
Posted By Doc_Wui

The car starter is 18Ah. Divide maH by 1000 to...

The car starter is 18Ah. Divide maH by 1000 to get aH. It's 12 volts, so multiply volts x aH, and that starter pack is 216 Watt-Hour. I am not sure you could get 18Ah out of the starter battery. It...
05-03-19, 09:43 PM
Replies: 157
Views: 12,490
Posted By Doc_Wui

All nite long, We would sing that stupid song....

All nite long, We would sing that stupid song. And every word we sang. I knew was true. Are you with me doctor wu ?
05-03-19, 12:14 AM
Replies: 12
Views: 2,001
Posted By Doc_Wui

Bionx is proprietary. You have to use their motor...

Bionx is proprietary. You have to use their motor and battery in combination. They also went bankrupt so it could be tricky to even buy one or get parts.

A regenerative direct drive motor on the...
Showing results 1 to 50 of 760
 


 
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