Search found 416 matches

by pwd
Oct 19 2020 9:58am
Forum: E-Bike Build Threads / Photos & Video
Topic: Hawk Classic - “stealth-ish” build
Replies: 9
Views: 600

Re: Hawk Classic - “stealth-ish” build

Cool looking build. I'm digging the retro look. I need to come up with a better solution than the wire strips - any sugestions? What did you mean by this ^^? Sorry, bad wording :) cable ties i meant. Ah I see. It's hard to get away from cable ties since they work so well. You've color matched them ...
by pwd
Oct 17 2020 5:38pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Hawk Classic - “stealth-ish” build
Replies: 9
Views: 600

Re: Hawk Classic - “stealth-ish” build

Cool looking build. I'm digging the retro look.
PeterpDahl wrote:
Oct 14 2020 1:58pm
I need to come up with a better solution than the wire strips - any sugestions?
What did you mean by this ^^?
by pwd
Oct 16 2020 2:36pm
Forum: E-Bike General Discussion
Topic: Usable Watt-hours?
Replies: 6
Views: 161

Re: Usable Watt-hours?

Your 650 watt hour figure seems about right compared to the pack's 884 wh rating. You have to also consider that most battery packs will have a low voltage cutoff that is triggered somewhere around 2.7-3.1V per cell which may be around 10% to 20% stage of charge. Another factor is that the capacity ...
by pwd
Oct 16 2020 8:58am
Forum: E-Bike Non-hub Motor Drives
Topic: How do you size the right Mid Drive?
Replies: 10
Views: 331

Re: How do you size the right Mid Drive?

The beauty of a mid drive is that you can utilize the bike's rear cassette/freewheel which allows you to tackle those steep; rooty, low speed climbs with minimal power. Here is a quick example in the simulator using a BBS02 Motor set to 20A max battery current @52V. I only picked this motor because ...
by pwd
Oct 16 2020 7:56am
Forum: E-Bike General Discussion
Topic: Off Road Throttle which one do you prefer?
Replies: 28
Views: 565

Re: Off Road Throttle which one do you prefer?

I like a half twist throttle only. It takes a while to get used to the throttle curve etc... but it gives me great modulation. I have been running at full power on the mtb trails lately but I'm able to still contribute some leg power when necessary just by being in the right gear etc... Can you rec...
by pwd
Oct 15 2020 4:00pm
Forum: E-Bike General Discussion
Topic: Off Road Throttle which one do you prefer?
Replies: 28
Views: 565

Re: Off Road Throttle which one do you prefer?

I like a half twist throttle only. It takes a while to get used to the throttle curve etc... but it gives me great modulation. I have been running at full power on the mtb trails lately but I'm able to still contribute some leg power when necessary just by being in the right gear etc...
by pwd
Oct 06 2020 8:29am
Forum: E-Bike Technical
Topic: Opto relay issues
Replies: 25
Views: 648

Re: Opto relay issues

It is usually the job of the motor controller to cut the throttle signal when the e-brake is triggered. If you can provide a schematic of how you have your relay wired; that may help pinpoint the issue.
by pwd
Sep 27 2020 2:25pm
Forum: E-Bike Build Threads / Photos & Video
Topic: PWD's Rocky Mountain Element - 2WD
Replies: 62
Views: 8057

Re: PWD's Rocky Mountain Element - 2WD

The bike has been working well and is more enjoyable without the kinks of the old front controller. Shorty after I installed the front controller; I trimmed out all the un-used cables for a cleaner look. IMG_20200904_151514.jpg I've sealed up the top where the cables exist with black liquid tape for...
by pwd
Sep 24 2020 8:32am
Forum: E-Bike Technical
Topic: Hot Rodding the Anza Motorbike
Replies: 2
Views: 167

Re: Hot Rodding the Anza Motorbike

I would probably try to locate a similar frame and build it up from there instead of buying a pre-built bike that you would be stripping the components off of anyway. According to their site is says they are sold out of the current batch and aren't available till December. You mentioned full suspens...
by pwd
Sep 23 2020 10:03am
Forum: E-Bike Build Threads / Photos & Video
Topic: Framed Alaskan Fat BBSHD Build Thread
Replies: 28
Views: 2197

Re: Framed Alaskan Fat BBSHD Build Thread

How does the bike ride? Did you have to tweak things to improve the chainline?
by pwd
Sep 22 2020 12:24pm
Forum: E-Bike Technical
Topic: Do cooler motors run quicker?
Replies: 16
Views: 578

Re: Do cooler motors run quicker?

A cooler motor will run "better" but depends on the temperature differences and motor setup etc... here is a basic example:
https://www.ebikes.ca/tools/simulator.h ... &temp_b=90

10 C vs 90 C initial motor temperature - click on the "Show Advanced" to adjust
by pwd
Sep 20 2020 2:25pm
Forum: E-Bike General Discussion
Topic: road rage :( (lets hear your stories)
Replies: 25
Views: 2034

Re: road rage :( (lets hear your stories)

It has been a while since I had someone go crazy on me while riding my e-bike but it happened again. I was out for a ride doing approximately 56-57 kmph in a single lane 50 zone; they same speed I would drive my car at. I ghost pedal anytime I'm on public roads an. I'm in the left tire track. A driv...
by pwd
Sep 14 2020 8:20am
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 104
Views: 2728

Re: Is regenerative braking really worth anything?

Regen braking is very valuable to me. I am using two dd hub motors and frequently ride around with traffic at approximately 55-60 kmph. Regen drastically improves my stopping distance and I'm sure I save a lot of wear on the pads. I treat it like engine braking. I don't really use it for the energy ...
by pwd
Sep 13 2020 3:33pm
Forum: Battery Technology
Topic: Difference in range
Replies: 14
Views: 340

Re: Difference in range

It depends on a few things othings things like what kv the motor is and how much current you are feeding it. The 5T leafmotor can be found on the Grin motor simulator to give you a good comparison: https://www.ebikes.ca/tools/simulator.html?motor=Leaf%205T&batt=cust_48_0.2_15&motor_b=Leaf%205T&batt_...
by pwd
Sep 08 2020 7:49am
Forum: E-Bike Build Threads / Photos & Video
Topic: Framed Alaskan Fat BBSHD Build Thread
Replies: 28
Views: 2197

Re: Framed Alaskan Fat BBSHD Build Thread

Tommy L wrote:
Sep 07 2020 9:03pm
pwd wrote:
Sep 07 2020 10:13am
FYI your image tags don't seem to be working
I think I’ve got is sorted out.

Is this working now???
They seem to be working now.

Nice job on the battery pack. I like the copper under the nickle.
by pwd
Sep 07 2020 10:13am
Forum: E-Bike Build Threads / Photos & Video
Topic: Framed Alaskan Fat BBSHD Build Thread
Replies: 28
Views: 2197

Re: Framed Alaskan Fat BBSHD Build Thread

FYI your image tags don't seem to be working
by pwd
Sep 07 2020 10:04am
Forum: E-Bike Technical
Topic: Battery Questions
Replies: 3
Views: 216

Re: Battery Questions

Ah = ampere hours (a form of battery capacity) A = amperes (current) I think you are confusing the two terms. https://www.ebikes.ca/learn/batteries.html You have to figure out what capacity you need (amp hours, or better yet, watt hours) and how much current you need the pack to deliver (discharge a...
by pwd
Sep 07 2020 8:59am
Forum: E-Bike Technical
Topic: How many Amps can my battery handle?
Replies: 15
Views: 357

Re: How many Amps can my battery handle?

I think 10A per cell for one minute would be too much. If you did 8A per cell for say < 10 seconds; that would be better but would still be a lot for my taste on those cells. As other other mentioned; you will significantly reduce the usable cycles from the cells if you are heating them up frequently.
by pwd
Sep 04 2020 12:51pm
Forum: E-Bike Build Threads / Photos & Video
Topic: PWD's Rocky Mountain Element - 2WD
Replies: 62
Views: 8057

Re: PWD's Rocky Mountain Element - 2WD

I've completed a new front controller upgrade to the bike this week. I ordered this simulated sine-wave controller a couple of months ago: https://www.aliexpress.com/item/32959235022.html HTB1RZuvX.vrK1RjSszfq6xJNVXaT.jpg The goal was to (finally) replace my Magic Pie 4 internal controller. Although...
by pwd
Sep 02 2020 7:27am
Forum: E-Bike Technical
Topic: INFINEON CONTROLLERS FOR DUMMIES
Replies: 267
Views: 55051

Re: INFINEON CONTROLLERS FOR DUMMIES

I manged to find the answer. Here is a USB programming wire diagram for Infineon 4 (KH6XX) controllers: vrrxt9_thumb.jpeg Found it on: https://electrotransport.ru/ussr/index.php?topic=13277.msg892795#msg892795 I just had to swap the RX and TX wires on the controller end and I was able to program my ...
by pwd
Sep 01 2020 2:08pm
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 610
Views: 173050

Re: XPD: open-source keywin e-bike lab replacement

Does anyone have a diagram of how to connect an Infineon 4 (KH6XX) style controller to a USB programming cable?

EDIT: Found the answer and posted it here:
viewtopic.php?f=2&t=8610&p=1580680#p1580680
by pwd
Sep 01 2020 1:24pm
Forum: E-Bike Technical
Topic: INFINEON CONTROLLERS FOR DUMMIES
Replies: 267
Views: 55051

Re: INFINEON CONTROLLERS FOR DUMMIES

I just received this controller: https://www.aliexpress.com/item/32959235022.html?spm=a2g0s.9042311.0.0.3f2c4c4d88vie5 I used a programming cable that works fine on another KH6XX controller but it doesn't work with this new controller. I am using XPD 0.4.1 and trying to read setting from the control...
by pwd
Aug 26 2020 8:54am
Forum: Battery Technology
Topic: Can't reach full charge on my DIY battery
Replies: 6
Views: 194

Re: Can't reach full charge on my DIY battery

Can you check the cell group voltages? They may be out of balance. So long as your charger is actually supplying 42V it should be charging the pack to that voltage. It may just take a little while at 2A. Are you using a BMS?
by pwd
Aug 25 2020 8:35am
Forum: E-Bike Non-hub Motor Drives
Topic: Will a mid drive fit this front loader cargo bike?
Replies: 13
Views: 512

Re: Will a mid drive fit this front loader cargo bike?

If you aren't able to mount the BBSHD, you can probably use a more modular mid-drive system like the Cyclone 3kw etc... when the motor to crank reduction isn't integrated like on the BBSXX ,you can mount the motor further away from the crank like this (would require some custom mounts): cyclone-moun...