Endless Sphere

Unless the motor is totally immersed, I think any water entering will be steamed out by the heat produced in normal use and is not particularly a problem. More of a problem, IMO, is the grit, salt and other contaminates that will build up during prolonged wet riding. For this, the sensible thing wou...

One interesting approach that was on here years ago was to use the shifter. I don't remember many details, or even how well it worked, but what he did was; place a normal rotating throttle in a bag and run the first shifter cable to it. He made a bracket that converted the linear cable motion into t...

My objective is to ride gentle 5% gradient for 30km continuously. 120kg rider, 15kg bike, 20" (406) wheels, front geared hub motor. speed doesn't matter but I do understand that the motor will be happy if I keep it 20+km/h. Controller The controller is the easy bit, water/weather proof (by applying...

As I look back, I see I never really answered your original question about wiring in a 3-way rocker switch to control the PAS, so here goes; A number of years ago, I did just that. As I recall, the controller was a KU63 or KU65. I soldered in the wires, bundled and ran them them to a custom bracket ...

I use this controller on all my Q100's and my Ezee V1 w/ voltages between 44.5V (12S LiPoly) & 52V (14S LiPoly): https://www.ebay.com/itm/36V-48V-350W-9MOSFET-ebike-Electric-Bicycle-Brushless-Motor-Controller-with-LED/222373438918?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140107095...

You can save yourself a lot of time and just do a proper search here. Just search the posts of either myself, D8veh or chas58 using the keyword Q128. Literally hundreds of posts like; https://endless-sphere.com/forums/viewtopic.php?f=3&t=83886&p=1235123&hilit=q128+D8veh#p1235123 https://endless-sphe...

I am sticking with rear hub motors because climbing a hill a front hub motors spins. That is a rather general statement, but yes, a frt. mount hub motor will spin given enough power, somewhere around 1500 Watts system power. But that is the range where other handling and safety issues arise. I had ...

Since you are describing an "intermittent" prob., I would not suspect the prob. to be related to mechanical components like the gears. Over the years, I have damaged two Cutes, one was a drop-out failure and one was a Hall sensor failure. I have also melted Hall/Phase wires and connectors. All of th...

I know "sounds" are hard to quantify, but is it a metallic "whine"? My 260H has always had a faint plasticky buzz, which I assume is the gears, but my 201 CST (on 14S LiPoly) has always been dead silent. I doubt it's the magnets, w/out a reason to look at them, I have never even noticed them, but I ...

Unless you have run it underwater(unlikely where you are at), there is no maintenance to be done. They come w/ a lite coating of what looks to be Vaseline and it's all that's needed since the gears are made of nylon(or something like it)and are self lubricating. If you feel a need to do something, c...

Hi All, I am technology enthusiast working on a electric scooter 72V 24Ah. Can somebody suggest the basic/minimum instruments required to test the battery and controllers. If possible can someone suggest at least the best voltmeter for this application. Thank you in advance. Voltage only indicates ...

Chalo-You pointed out to me to I referred to the wrong Model tire I'm using. It is the "Slick", which is a tire. w/ sipping.
I does seem odd that WTB would name a tire w/ a "normal" type of tread a "Slick"

I was thinking on, in theory the higher the voltage the less amps are needed to produce the same power. Let's say I want to upgrade from 48V to 96V, while everything is the same (controller, motor, battery capacity). With 96V the motor can spin faster, and if the controller can give me enough amps,...

You are focusing on the wrong issue, rather than wishing for an easier way to repair a flat, you should be thinking about what you can do to prevent flats. During the 8 years that I have been building and riding Ebikes, the evolution of my wheels and tires has received more attention than any other ...

Yeah, they worked great. On my Idrive build I used a controller and harness from another bike and the wires were a little short to reach my seat bag. I got them in thru a little hole I punched in the bag, but they weren't long enough to come out the zippered end, so I had a prob. soldering all the w...

..... , the gear whine on the EZEE is taking some getting used to Perhaps the gear material has something to do w/ it. I have a couple of original Ezee V1's that came w/ the white nylon gears, which I suspect are softer than the later blue composite gears. Motor "whine", is of course subjective, bu...

Just because you will be using a 36 V pack, does not mean you necessarily have to use a 36 V motor. The 36V/500 is just the factory rating, a reference. A basic "rule of thumb" used here is, it's safe to use a hub motor up to 2 1/2 times the rating for short periods of time. In the case of the BPM I...

In the summer here, I ride mostly at nite and while I have a great h.lite, I seem to hit something I didn't see almost every ride. It's then when my spine really appreciates have some cushion to take the sting off.

Quite a few years ago, a member here, mckeefer, over-volted a min-motor to destruction. As I recall he was in the 70 to 80 Volts range when the windings cooked. Of course, he had to up the amps as Voltage went up to achieve an increase in speed. I have run 14S LiPoly (about 54V nom.) on mini motors,...

These things are a boon to the ebike builder, so much easier than the tedious job of soldering many small wires, like when elimitnating clunky controller connectors. Even when working in a "rat's nest" of wires, one can use a directed flame torch and quickly make secure and weathertite splices witho...

Dude, what planet do you ride on?? I am absolutely convinced that a properly functioning hardtail can be counted on whereas who knows about a 15+ year old used FS bike. MTB's have been equipped w/Fox Floats since the early 2000''s and the rebuild kits are like $15 and take an hour to install w/ no s...

My experience w/ higher-speed motors or larger wheels is the controller is most likely to get hot. If the motor is struggling to get up into the higher, more efficient rpm zone, the controller tries to supply as many Amps as it can. I'm talking about climbing mostly.

Lot of trouble when one can just use a DNP 11 sm. tooth free wheel and leave it on the sm. cog. That's what I do and since I'm not shifting, the 11T gear lasts longer. As mentioned above, if one feels they want a "cleaner look" or less weight, just cut off a few of the larger gears. That's what I di...

At this point in time, I can't see myself comfortably riding beyond 30 mph. I think I've told you, you will not be going 30 mph. 30 mph is superfast for an ebike. I was trying to get you to 25 mph. If you want to go 30 mph, double your budget, forget the Trek and buy the Frisbee sized DD motor and ...

Wtuber posted while I was typing. The Q100 mini is a little smaller than the Ebiking mini, but, as you can see, the difference in size between a DD and a mini geared is profound! Really briefly (replying from work), the ebay motor you linked says it is compatible with v-brakes, which I assume means...