Search found 359 matches

by AHicks
Oct 23 2020 3:46pm
Forum: E-Bike General Discussion
Topic: Abnormally large spark, burned me. What's going on?
Replies: 5
Views: 135

Re: Abnormally large spark, burned me. What's going on?

My guess is you managed to discharge a large capacity capacitor somewhere somehow. That big POW has happened to me on several occasions where I plugged the battery charger in to the 110 outlet prior to hooking up the charge lead. After the second time, I don't do that anymore! I plug the charger int...
by AHicks
Oct 20 2020 3:26pm
Forum: E-Bike Technical
Topic: Torque curve inflection point
Replies: 10
Views: 213

Re: Torque curve inflection point

Radio control modeling (they use battery powered miniature 3 phase motors for some applications) has taught me you can use a straight line for power input to a motor (linear), yielding a curve on the motor's output, OR, you can use a curve on your voltage input (exponetial values) to get a straight ...
by AHicks
Oct 18 2020 12:59pm
Forum: E-Bike Technical
Topic: Torque sensor and Kunteng controller
Replies: 3
Views: 94

Re: Torque sensor and Kunteng controller

For their software to work correctly, you MUST set P3=1 in the parameters. If you set P3=0 that "power" based software is disabled. -Al
by AHicks
Oct 18 2020 10:12am
Forum: E-Bike General Discussion
Topic: Bike mechanic starting mobile repair trailer, ebike specific tools worth adding
Replies: 21
Views: 464

Re: Bike mechanic starting mobile repair trailer, ebike specific tools worth adding

2 tools more important than all others, and they're free. 1. Patience 2. An open mind...... Even the cheapest of the cheap e-bikes are often repaired very simply. Turning your nose up regarding them could cost you a lot of money. Just be prepared to bail on them quickly if it looks ugly.... Like if ...
by AHicks
Oct 18 2020 9:26am
Forum: E-Bike Technical
Topic: Torque sensor and Kunteng controller
Replies: 3
Views: 94

Re: Torque sensor and Kunteng controller

The KT PAS sensor voltage "in" is 6v I believe. My experience with the KT controllers has been that their standard cadence sensing software is among the best available. If you haven't already, I would encourage you to at least try it prior to spending the time and money required to run a torque sens...
by AHicks
Oct 16 2020 9:53am
Forum: E-Bike General Discussion
Topic: Off Road Throttle which one do you prefer?
Replies: 28
Views: 594

Re: Off Road Throttle which one do you prefer?

Thumb throttle on right only. Another vote for RH thumb throttle. EVERY handlebar equipped whatever I've ever ridden/driven, 60 years worth of mini bikes, ATV's, snowmobiles, jet skis, motorcycles of all sorts, and now e-bikes, have had the throttle on the right. No plans to change that history her...
by AHicks
Oct 15 2020 7:07pm
Forum: E-Bike General Discussion
Topic: Off Road Throttle which one do you prefer?
Replies: 28
Views: 594

Re: Off Road Throttle which one do you prefer?

Thumb throttle on right only. Another vote for RH thumb throttle. EVERY handlebar equipped whatever I've ever ridden/driven, 60 years worth of mini bikes, ATV's, snowmobiles, jet skis, motorcycles of all sorts, and now e-bikes, have had the throttle on the right. No plans to change that history her...
by AHicks
Oct 15 2020 12:39pm
Forum: E-Bike Technical
Topic: Should I buy a non functioning ebike?
Replies: 11
Views: 296

Re: Should I buy a non functioning ebike?

For me, it would be about a call regarding if I liked the bike or not. If you've been shopping, and you have been looking at similar, then maybe go for it. If the style bike is NOT something you would normally go for, say it's a 20" folder and you've been looking at mostly non folding 26" bikes, the...
by AHicks
Oct 15 2020 9:19am
Forum: E-Bike General Discussion
Topic: Regen working the wrong way - pls help
Replies: 7
Views: 182

Re: Regen working the wrong way - pls help

Have you ridden the bike yet? My experience with a 1500w direct drive and 35a KT controller may be a little different than what you're facing, but with that bike you could not feel the regen working at speeds below 15 mph. At 25mph it was very noticeable, but still nothing alarming. Mine was used to...
by AHicks
Oct 10 2020 8:14am
Forum: Items Wanted
Topic: Bafang Ultra Max G510 plastic gear
Replies: 0
Views: 72

Bafang Ultra Max G510 plastic gear

Would love to find a take out in good shape. One that's been replaced by a metal gear?

Thanks!
by AHicks
Oct 10 2020 8:09am
Forum: E-Bike General Discussion
Topic: Noisy Ultra M620 gears?
Replies: 1
Views: 133

Re: Noisy Ultra M620 gears?

I've talked with a couple of people that should know what they are talking about now, and both agreed the gears are NOT interchangeable. FYI for those following along later. -Al
by AHicks
Oct 08 2020 8:08pm
Forum: E-Bike General Discussion
Topic: Noisy Ultra M620 gears?
Replies: 1
Views: 133

Noisy Ultra M620 gears?

Just got a new Ultra based bike, and quite honestly, am not happy with what I think are noisy (metal) gears. My question is regarding the plastic gears used in the earlier motors (BBSxx). Would those work in the newer style M620 that comes with metal gears? If so, anyone source them lately? I'm 70, ...
by AHicks
Oct 06 2020 8:12am
Forum: E-Bike Technical
Topic: raising voltage to maximize regen. braking?
Replies: 43
Views: 1148

Re: raising voltage to maximize regen. braking?

I'd call Grin and ask them if they, or anyone they're aware of, has played with that higher voltage concept. Further, they may have another idea or 2 regarding how you might gain more/better braking. Would be a good chance to talk to them about both....
by AHicks
Sep 26 2020 2:21pm
Forum: E-Bike General Discussion
Topic: Leafmotor project
Replies: 60
Views: 1228

Re: Leafmotor project

[/quote] Hmmmm more torque myth....... AGAIN Two same motors of different wind counts do not have a) more torque or b) more speed, they both have the exact same torque and speed. Playing around with tire diameter, controller voltage and controller amps, gauge and length of battery cables and phase w...
by AHicks
Sep 25 2020 7:14pm
Forum: E-Bike General Discussion
Topic: Leafmotor project
Replies: 60
Views: 1228

Re: Leafmotor project

I think when you see your available range at speeds over about 25mph, there will be a reality check, and a new much lower expectation will surface.... My vote would be for more turns as that's going to equal more torque, which will be really nice to have when not out on a level road. City driving, s...
by AHicks
Sep 20 2020 7:23pm
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 104
Views: 2760

Re: Is regenerative braking really worth anything?

trackebike- I don't think anyone is claiming regen (as most know it) is going to work out well for everyone. As mentioned earlier it's a big yawn for those that some might call flat landers. And then, even for those that are riding in hilly areas, regen is way more about holding your speed in check....
by AHicks
Sep 18 2020 8:02am
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! NEW FREY EX and FREY CC
Replies: 100
Views: 17035

Re: My Bafang Ultra Mountain Bike! NEW FREY EX and FREY CC

Rohloff hub with a gates belt drive I would be a buyer. Not sure I could live with the noise of a Rohloff hub but FLX may have what you are looking for in the new Blade 2.0: https://flx.bike/collections/bikes/products/blade-2-0 https://cdn.shopify.com/s/files/1/2351/5779/files/1645405860.png?v=1577...
by AHicks
Sep 17 2020 7:22pm
Forum: E-Bike Technical
Topic: Strange problems with KT controllers and diplays?
Replies: 6
Views: 257

Re: Strange problems with KT controllers and diplays?

If the speed isn't working, at least while under power, my bet is there is a parameter set incorrectly. Have you tried doing a reset to default settings and starting over again?
by AHicks
Sep 14 2020 6:54pm
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 104
Views: 2760

Re: Is regenerative braking really worth anything?

Getting back to the original question "Is regenerative braking worth anything?". My vote would be no for most people. A big ywn from a flat lander... Those that live in an area with large hills, especially those hills with stop signs at the bottom of them, I'm pretty sure they'll not only use them, ...
by AHicks
Sep 12 2020 7:34pm
Forum: E-Bike Technical
Topic: Hmmmm, regen
Replies: 4
Views: 147

Re: Hmmmm, regen

My "best guess" is that the noise generated by regen, and the volume, are both going to be dependent on the current being generated at the moment. Point being, if it's making you nuts, set it up so it's not trying to pass as much current.... And yes, I get it. That's going to affect how much braking...
by AHicks
Aug 28 2020 8:34am
Forum: E-Bike General Discussion
Topic: Motor/Kit recommendations
Replies: 3
Views: 281

Re: Motor/Kit recommendations

Check out the MAC motors. If speed isn't important and you can find one (they seem to be in short supply at the moment) the 12t model is a well known high quality "torque monster". Rated at 1000w+ and 100nm. The MAC is also offered in 6, 8, and 10t versions. The number of turns determins torque vs. ...
by AHicks
Aug 27 2020 6:58pm
Forum: E-Bike General Discussion
Topic: Controller / battery question
Replies: 6
Views: 254

Re: Controller / battery question

If the question is will it work, without knowing more about it, I'll go out on a limb and say probably. Ideal? That's pretty subjective, don't you think? For instance, any motor I would call "ideal" would be gear driven for instance. Any controller would have to be accompanied by an LCD display, and...
by AHicks
Aug 26 2020 8:26am
Forum: E-Bike General Discussion
Topic: Help a guy have fun again on a bike
Replies: 10
Views: 897

Re: Help a guy have fun again on a bike

I'm a pretty active (thanks to e-bikes among other things) 69 year old 6'2" 315lb rider. I will share that if you have much in the way of hills in the area you ride most often, you want a geared rear hub, and as big a motor as you can find. I would not buy anything smaller that a 750w and make sure ...
by AHicks
Aug 25 2020 7:58pm
Forum: E-Bike General Discussion
Topic: New 1000w Geared hub MXUS XFC19
Replies: 74
Views: 5597

Re: New 1000w Geared hub MXUS XFC19

Picture not possible. Sticker is not visible without disassembly (up against the seat tube), same with the PCB. Bike is used almost daily. I looked more closely at the controller in the link I sent. It's a sensorless controller. The one I am using is sensored - but other than that is identical to th...
by AHicks
Aug 25 2020 3:33pm
Forum: E-Bike Technical
Topic: A123 cells BMS off the shelf?
Replies: 4
Views: 142

Re: A123 cells BMS off the shelf?

One of the reasons I have no interest in building my own pack was learned through the need for a pack to balance charge in radio control. To make that possible, the individual cells that make up that pack must match in voltage capacity very closely. Trust me, they can vary widely! To get 10 cells th...