Search found 295 matches

by AHicks
Jun 02 2020 7:46am
Forum: E-Bike Technical
Topic: svmc e-brake/regen brake with 18650 battery pack / agm
Replies: 3
Views: 92

Re: svmc e-brake/regen brake with 18650 battery pack / agm

Will be watching with interest, but I don't think the BMS will be in the circuit when considering power from the regen. This power will be back feeding the battery output wires. Yes, for sure there is stress on the controller (and everything else e.g. motor, battery) when it comes to handling this p...
by AHicks
May 29 2020 9:47am
Forum: E-Bike General Discussion
Topic: 1500w.. Minimum ah?
Replies: 18
Views: 295

Re: 1500w.. Minimum ah?

A lot of what you need for a battery is going to be about how you plan on riding this bike. If it's something where you aren't really needing or planning on using all of the motor's capacity, smaller batteries will work fine. From a newbie standpoint, I would stick with a 48v batt. Reason being is s...
by AHicks
May 28 2020 7:38am
Forum: E-Bike General Discussion
Topic: Favourite high power hub motor?
Replies: 52
Views: 4915

Re: Favourite high power hub motor?

Just my take here, but I think a call needs to be made on what kind of speeds we're talking about, and what percentage of time they will be ridden. The MAC (or any geared hub) are really not going to compete well, as compared to a direct drive, when talking speeds over about 25. Occasional speeds ov...
by AHicks
May 23 2020 6:58pm
Forum: E-Bike General Discussion
Topic: Geared hub fat bike.
Replies: 12
Views: 324

Re: Geared hub fat bike.

Try Grin.
www.ebikes.ca

or if you're feeling more adventurous, try poking around on Amazon.
by AHicks
May 21 2020 7:16am
Forum: E-Bike Technical
Topic: Recoverig Kunteng controller's factory settings
Replies: 3
Views: 116

Re: Recoverig Kunteng controller's factory settings

There is a reset function on the KT controllers, but the only way to access it that I'm familiar with is with a KT based LCD. The setting is in the "C" parameters, and you're after C10=y to do a reset.
by AHicks
May 18 2020 7:45pm
Forum: E-Bike General Discussion
Topic: eZee vs MAC? Your thoughts?
Replies: 19
Views: 423

Re: eZee vs MAC? Your thoughts?

Been riding a MAC 12t converted Rad City for about a year now. Absolutely love it for it's power, low noise (even when compared to a direct drive), and it's efficiency. I just wanted to add that I'm using a KT controller and display w/12 fet and 35a capacity, but I use it set up with a max output of...
by AHicks
Apr 23 2020 7:17pm
Forum: E-Bike Technical
Topic: 12T MAC motor and high current
Replies: 42
Views: 6242

Re: 12T MAC motor and high current

Grin Tech doesn't currently show a "Front" version of the GMAC: https://www.ebikes.ca/shop/electric-bicycle-kits/gmac/gmac-rear-kit-basic-throttle.html You can send Grin Tech "sales" an email and ask them about the possibility. They have been very responsive and helpful for me in the past..."sales@...
by AHicks
Apr 23 2020 3:39pm
Forum: E-Bike Technical
Topic: 12T MAC motor and high current
Replies: 42
Views: 6242

Re: 12T MAC motor and high current

IMO gotta have regen for safety, regardless of whether you use the power produced or not with a heavy load and steep hill country Mechanical braking is much more difficult to make reliable. The GMAC offered by Grin Tech is a MAC with regen and a few additional improvements. IF I was buying a new mo...
by AHicks
Apr 19 2020 2:54pm
Forum: E-Bike Technical
Topic: Can't make simple PAS work
Replies: 4
Views: 145

Re: Can't make simple PAS work

I think you'll find it works fine when mounted on the opposite side of the crank from where it is now. Some controller displays will allow you to do this in the parameters. Too, if you don't like to have to crank 2 revs to get power, some times there is a "number of magnets" variable that can be pla...
by AHicks
Apr 19 2020 7:33am
Forum: E-Bike Technical
Topic: Ebikeling 1200 watt - To fast in PAS1
Replies: 2
Views: 138

Re: Ebikeling 1200 watt - To fast in PAS1

A link to the kit you used?

My suspicion is that the PAS levels are now based on speed/mph. My experience is that PAS levels should be based on available wattage. The correct answer will tell if that parameter can be changed, and how to do that.
by AHicks
Apr 18 2020 7:21pm
Forum: E-Bike General Discussion
Topic: DD and gear hub Ah compared on the same ride
Replies: 22
Views: 473

Re: DD and gear hub Ah compared on the same ride

Dogman, Similarly, my test was done on the same bike. The ONLY difference in the before and after was the motor itself. Noteworthy, is that my test was much longer term. Nearly a year of riding. Same rider, same weight, same riding area (Florida Gulf Coast, so no extremes, other than maybe humidity)...
by AHicks
Apr 18 2020 6:55pm
Forum: E-Bike General Discussion
Topic: PAS 1 to fast/strong .... What are my options to lower speed?
Replies: 29
Views: 671

Re: PAS 1 to fast/strong .... What are my options to lower speed?

I just want to grind away at a constant cadence, and constant 100w of pedal effort. Then I can do this for 5-7 hours. Any more effort, and I'm done in an hour. At 69 years, me too. Same type of history, including 40 years of snowmobiling (thumb throttle), nearly as many years on quads (also thumb t...
by AHicks
Apr 18 2020 11:48am
Forum: E-Bike General Discussion
Topic: DD and gear hub Ah compared on the same ride
Replies: 22
Views: 473

Re: DD and gear hub Ah compared on the same ride

Yeah, your test is junk science, with at least two variables. ( weight) But it still shows how little the difference should be, provided neither system was overloaded. Where geared vs DD shows up different, is when the ride includes a stop every block, like riding parallel to a major street in many...
by AHicks
Apr 18 2020 11:37am
Forum: E-Bike General Discussion
Topic: PAS 1 to fast/strong .... What are my options to lower speed?
Replies: 29
Views: 671

Re: PAS 1 to fast/strong .... What are my options to lower speed?

If you do make the adjustments let us know the results. Sounds like that may only affect the top end and pulling power up a hill. C5 limits the available battery power to the motor electronically. Because the different PAS levels are determined by the amount of WATTAGE they will allow, that C-5 set...
by AHicks
Apr 18 2020 6:59am
Forum: E-Bike General Discussion
Topic: DD and gear hub Ah compared on the same ride
Replies: 22
Views: 473

Re: DD and gear hub Ah compared on the same ride

Switched from a Leaf 1500w (DD) to a GMAC 12t (geared hub) with no other changes. Ridden on the same routes in the same area (rolling coastal area, mostly 8 to 13mph in PAS 1), went from an easy 25 mile range to an easy 35 mile range. MUCH sportier performance at the lower speeds I ride most frequen...
by AHicks
Apr 17 2020 2:50pm
Forum: E-Bike General Discussion
Topic: PAS 1 to fast/strong .... What are my options to lower speed?
Replies: 29
Views: 671

Re: PAS 1 to fast/strong .... What are my options to lower speed?

I'm really not clear on your objective. If it's to allow you to stay up with the pedals, the gear change (on either end), will do that. If you want to limit the WATTAGE, not voltage, for better control over the various PAS levels, the KT controller will allow you to do that - without resorting to th...
by AHicks
Apr 17 2020 7:27am
Forum: E-Bike General Discussion
Topic: PAS 1 to fast/strong .... What are my options to lower speed?
Replies: 29
Views: 671

Re: PAS 1 to fast/strong .... What are my options to lower speed?

Are you saying that you can't keep up with the pedals at speeds over 11-12mph? Doing liesuerly pedaling, Thats exactly right and thats running the lowest assist level and the highest rear gear. If I wanted to pedal my rear off I could go faster and probably go up to pas2. But theres no way i could ...
by AHicks
Apr 16 2020 12:01pm
Forum: E-Bike General Discussion
Topic: PAS 1 to fast/strong .... What are my options to lower speed?
Replies: 29
Views: 671

Re: PAS 1 to fast/strong .... What are my options to lower speed?

I think many would agree it's easier to maintain speed using PAS. I get what you are saying there, but I fear I'm loosing it someplace from there. Are you saying that you can't keep up with the pedals at speeds over 11-12mph? If that's the case, change your front gear to one with more teeth on it. T...
by AHicks
Apr 16 2020 11:47am
Forum: E-Bike General Discussion
Topic: Best motor choice for rear hub conversion
Replies: 14
Views: 655

Re: Best motor choice for rear hub conversion

I knew from other posts here, I don’t remember which, that Leaf would do custom winds. They say so in their product descriptions. At the time I got my Leaf 1500W hub, I think the default was 5t. I specified 6t in my order (thinking I would use it for a 20” wheel), and that’s what I got. When I comm...
by AHicks
Apr 16 2020 11:43am
Forum: E-Bike General Discussion
Topic: Best motor choice for rear hub conversion
Replies: 14
Views: 655

Re: Best motor choice for rear hub conversion

Re: the 1500w leaf, vs. comparably powered gear drives. 2 thoughts. First, the 1500w Leaf DD would leave both the drive, and ME, both panting at the top of some of the hills found locally. It would NOT power to the top of these hills unassisted with 2000w available to it. I could get off and walk, o...
by AHicks
Apr 16 2020 12:56am
Forum: E-Bike General Discussion
Topic: Best motor choice for rear hub conversion
Replies: 14
Views: 655

Re: Best motor choice for rear hub conversion

Since the OP specifically mentions the Leaf Bike 1500W motor, it’s worth noting that they’ll make any feasible winding by request. That's pretty interesting. It's funny (weird funny) that you don't hear more about that. Do you have a link to some documentation? Documentation? This is low budget Chi...
by AHicks
Apr 15 2020 6:57pm
Forum: E-Bike General Discussion
Topic: Best motor choice for rear hub conversion
Replies: 14
Views: 655

Re: Best motor choice for rear hub conversion

The big direct drives do well from about 15mph on up, but they can be pretty gutless from a standing start. Since the OP specifically mentions the Leaf Bike 1500W motor, it’s worth noting that they’ll make any feasible winding by request. You can get a 5 turn, 13 strand version of the motor that be...
by AHicks
Apr 15 2020 8:53am
Forum: E-Bike General Discussion
Topic: Best motor choice for rear hub conversion
Replies: 14
Views: 655

Re: Best motor choice for rear hub conversion

Knowing what I know now, after doing several 1500w DD conversions, I will not do another. It would be a gear driven hub for me, and most likely a MAC with a suitable number of windings for the purpose I had in mind (speed vs. torque). Or possibly a GMAC with the proportional regen, something I'm lo...
by AHicks
Apr 14 2020 8:07am
Forum: E-Bike Technical
Topic: Replacing MOSFETs in a Grinfineon controller.
Replies: 6
Views: 248

Re: Replacing MOSFETs in a Grinfineon controller.

When you figure out what happened and get it going again, with the history of one chain jamb disaster already under your belt, wondering if a circuit breaker in the circuit might/should be part of the recovery plan?
by AHicks
Apr 01 2020 7:22pm
Forum: E-Bike General Discussion
Topic: Tell me about MAC 3 speed and cruise button
Replies: 11
Views: 307

Re: Tell me about MAC 3 speed and cruise button

Mike, the 12t may be good for 25, but it's only rated for 20 or so I think. 25 will be pushing it. A 10t might be a better choice if the ability to run 25mph is a priority. As far as the low speed stuff, I'm sure you'll be happy unless this "steep hill" is REALLY steep. The throttle control issues a...