Search found 22 matches

by HoraceLai
Sep 21 2020 9:26am
Forum: E-Bike Build Threads / Photos & Video
Topic: Fatbike with 3500w Bafang G510 Ultra max
Replies: 9
Views: 744

Re: Fatbike with 3500w Bafang G510 Ultra max

Fenders look really good. Where did you buy them?
by HoraceLai
Sep 20 2020 8:13am
Forum: E-Bike Build Threads / Photos & Video
Topic: Just Another Electra Lux Fat 7D Build
Replies: 0
Views: 507

Just Another Electra Lux Fat 7D Build

I wanted a relaxed fat tire e-bike for various purposes: hauling the kids, going on all kinds of surfaces, commuting in a relaxed way, hauling cargo. After much Googling I found the Electra Lux Fat 7D, which has been converted many times before due to the possibility of it being able to fit the BBSH...
by HoraceLai
Jan 20 2015 7:57am
Forum: E-Bike Non-hub Motor Drives
Topic: Mid drive motors and freewheel questions
Replies: 8
Views: 1506

Re: Mid drive motors and freewheel questions

Are there any available mid drive kits that only have one freewheel (no freewheel for the motor to the chain)?

Would this add a lot of drag when neither the motor or pedals are being powered?
by HoraceLai
Jan 20 2015 4:24am
Forum: E-Bike Non-hub Motor Drives
Topic: Mid drive motors and freewheel questions
Replies: 8
Views: 1506

Re: Mid drive motors and freewheel questions

I would like the velomobile to be motorized both forwards and backwards if possible. If not then I guess a fabric covered foot hole is the next best thing. Other solutions I can think off add a lot of complexity and reliability questions. It's too bad that only a direct drive will work for this. If ...
by HoraceLai
Jan 19 2015 3:17pm
Forum: E-Bike Non-hub Motor Drives
Topic: Mid drive motors and freewheel questions
Replies: 8
Views: 1506

Mid drive motors and freewheel questions

Hi, I am looking into mid drive motors for velomobile purposes. For those of you who don't know, velomobiles are enclosed trikes/quads. Most of which have foot holes at the bottom to go reverse. Some of which uses a hub motor to reverse. However, since they tend to weigh 30kg-50kg and top out at aro...
by HoraceLai
Sep 27 2014 10:35am
Forum: Battery Technology
Topic: Is my battery dead?
Replies: 10
Views: 939

Re: Is my battery dead?

Just took the ebike out for a spin, went approximately 15 km. Seems to work fine. Everything working as it should. I have no idea what happened.
by HoraceLai
Sep 27 2014 7:36am
Forum: Battery Technology
Topic: Is my battery dead?
Replies: 10
Views: 939

Re: Is my battery dead?

Image

Image

Image
by HoraceLai
Sep 27 2014 7:23am
Forum: Battery Technology
Topic: Is my battery dead?
Replies: 10
Views: 939

Re: Is my battery dead?

Hi guys, I haven't done anything to the battery yet since my screwdriver is too thick to fit into the hole where the screws are located. However, since it is a sunny day today, the balcony doors are opened and the battery has been in the sun since this morning. I checked the power level again and it...
by HoraceLai
Sep 26 2014 2:19am
Forum: Battery Technology
Topic: Is my battery dead?
Replies: 10
Views: 939

Re: Is my battery dead?

Best first guess wihtout any other info or measurements is a connection problem, but that could be anywhere inside the battery (or possibly charger, or both). A poor solder joint or crimp could have high resistance when cold, or damp, and either prevent connection to the bike and/or charger if it's...
by HoraceLai
Sep 25 2014 12:22pm
Forum: Battery Technology
Topic: Is my battery dead?
Replies: 10
Views: 939

Re: Is my battery dead?

So I need to open it up I guess? You mean you need pictures of the battery cells? The link above shows the battery as a "package"
by HoraceLai
Sep 25 2014 12:01pm
Forum: Battery Technology
Topic: Is my battery dead?
Replies: 10
Views: 939

Is my battery dead?

First of all, I want to describe a problem with my battery that happened around 10 months ago during late fall. I left my ebike with the battery attached in the basement overnight. Basement temperature was probably around 5C. The battery stopped working while I was riding it to work the next day. I ...
by HoraceLai
Jul 07 2014 2:31am
Forum: E-Bike Non-hub Motor Drives
Topic: New Bafang Crank-Drives
Replies: 4435
Views: 772791

Re: New Bafang Crank-drives

Hi guys, About the Bafang mid drive, I was wondering about its compatibility with different bottom bracket threadings. From some of the pictures, it looks like it might not even thread into the frame, but rather threaded onto itself and clamped in the BB tube. I have a bicycle with damaged BB threa...
by HoraceLai
Jul 06 2014 11:21am
Forum: E-Bike Non-hub Motor Drives
Topic: New Bafang Crank-Drives
Replies: 4435
Views: 772791

Re: New Bafang Crank-drives

Hi guys, About the Bafang mid drive, I was wondering about its compatibility with different bottom bracket threadings. From some of the pictures, it looks like it might not even thread into the frame, but rather threaded onto itself and clamped in the BB tube. I have a bicycle with damaged BB thread...
by HoraceLai
Oct 06 2013 1:05pm
Forum: General Discussion
Topic: Trying to decide on a battery
Replies: 6
Views: 669

Re: Trying to decide on a battery

Okay, but what about the packaging? The Headway one is just a bunch of cells put together, no casing what so ever.
by HoraceLai
Oct 06 2013 12:07pm
Forum: General Discussion
Topic: Trying to decide on a battery
Replies: 6
Views: 669

Trying to decide on a battery

Hi, I am building my first ebike which is a tandem. I've decided on the kit but it doesn't include the motor so I need to choose. The kit: http://www.greenbikekit.com/index.php/electric-bike-kit-1/rear/36v-500w-8fun-bpm-e-bike-kit.html The battery choices: http://www.greenbikekit.com/index.php/lithi...
by HoraceLai
Aug 28 2013 12:17pm
Forum: E-Bike General Discussion
Topic: Electrifying my tandem bike
Replies: 18
Views: 2288

Re: Electrifying my tandem bike

Hi guys,

I have checked out packages from both Em3EV and Golden Motors and it seems like the kits are more complete with GM. The torque arms on the EM3EV site are $40. Overall it seems easier with GM but I am unsure of their quality. Any comments? They recommended me to get the Magic Pie 3

Horace
by HoraceLai
Aug 27 2013 4:18pm
Forum: E-Bike General Discussion
Topic: Electrifying my tandem bike
Replies: 18
Views: 2288

Re: Electrifying my tandem bike

Do you guys think it is more economical to have the regen braking on direct drive motors or the free wheeling and better climbing performance of the geared motor when it comes to a tandem?
by HoraceLai
Aug 26 2013 7:03am
Forum: E-Bike General Discussion
Topic: Electrifying my tandem bike
Replies: 18
Views: 2288

Re: Electrifying my tandem bike

Okay. I see. Great comments. I would also like to add that my friend has an electric single seater bike with 250W geared motor and 36V/10Ah battery. The terrain he rides it on is the same as mine. I've tried his bike on the hills that I go on. With low battery levels, and me lightly pedaling (no swe...
by HoraceLai
Aug 26 2013 12:39am
Forum: E-Bike General Discussion
Topic: Electrifying my tandem bike
Replies: 18
Views: 2288

Re: Electrifying my tandem bike

I think 30 km range without pedaling will get me a round trip to pretty much everywhere around town. I would like to do long distance touring later on.
by HoraceLai
Aug 25 2013 4:31pm
Forum: E-Bike General Discussion
Topic: Electrifying my tandem bike
Replies: 18
Views: 2288

Re: Electrifying my tandem bike

Hi! Thanks for all the tips so far. Do you guys have any suggestions on whether I should go geared or direct motors? Damage on a hub motor when going too slow - is that due to the gears receiving more torque? Wouldn't this be solved with a bigger, non-geared motor? And just to clarify, the setup doe...
by HoraceLai
Aug 25 2013 1:41pm
Forum: E-Bike General Discussion
Topic: Electrifying my tandem bike
Replies: 18
Views: 2288

Re: Electrifying my tandem bike

Hi, Good questions. Both riders do not plan on pedaling lots. We usually take it really easy on the hills, low cadence and low effort. We would like to go faster though. Frame is steel. Rear frame spacing is 135mm. Front is 100mm. Rear drop out width is 10mm. I drew a picture of the rear. the 350 mm...
by HoraceLai
Aug 25 2013 11:18am
Forum: E-Bike General Discussion
Topic: Electrifying my tandem bike
Replies: 18
Views: 2288

Electrifying my tandem bike

Hi, I would like to electrify my tandem bike. I found another thread on this exact project here and it suggested a Smart Pie motor. But from my research on this forum, that internal controller is not very water proofed inside the motor. Therefore I started a new thread to see what you guys can sugge...