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My Aventon display says in the last 60.8 miles I've saved 18 kg of CO2 and 3.3 trees. Similarly, the efficiency figure for your motor might not be based on output measurements. When controllers measure wattage, I think it's usually volts and amps from the battery. Motor output would be more...

https://www.amazon.com/bayite-6-5-100V-Display-Multimeter-Voltmeter/dp/B013PKYILS I checked amazon for "DC watt meter." They're likely to tell volts, amps, watts, and watt hours. Some use Hall sensors so you don't need to put a shunt in the line. With a hub motor and cadence PAS, motor output...

I calculate motor output by seeing the terminal speed up a known grade on throttle alone. If I want to test PAS power, I ghost pedal instead. I ignore rolling resistance and air drag. Newtons of propulsion (on the pavement) is gross weight in kg times percent grade times g (9.8). Meters per...

When my neighbor sees me down on the ground working on a bike, he'll offer me his shop. Sometimes laying a bike on its side is the best way to see and reach, and the lawn won't scratch my bike or me. A pocket magnet used to be a good way to find a dropped fastener, but now they're often...

Several times since then I've heard a brief rattling like a piece of that wire picked up by a tire and hitting a fender. I circle and look, and whatever it was remains invisible, like a short piece of fine wire thrown several feet. They're out to get me!!!o_O

Not long ago, I checked my rear brake because it sounded scratchy. I saw a fine wire sticking out of the caliper. It was something I'd never encountered: 2 inches of 0.6mm saw wire, used in tiny coping saws to cut materials like glass. I don't know how it got on the street or how I picked it up...

“There was never a horse that couldn’t be rode, and never a cowboy that couldn’t be throwed.” I started riding English bikes in first grade and had probably pedaled well over 20,000 miles when I finished high school. In those days, men over 20 usually rode English bikes, and the death toll per...

I like the kind of LED headlamp with a voltage regulator, but the kind that runs directly off 3 AAA cells dims over a period of many hours, giving me plenty of warning. I guess your tail light is like that.

It's disappointing to buy a 10oz caulking tube of stuff, use half an ounce, and later find the rest ruined. I've had better luck if I smeared the nozzle with silicone grease, covered it with foil, and used a zip tie to secure the foil against the grease. @PCeBiker told us about a device that...

I tried that with my Radmission after I discovered that the tail light did not have a reflector lens. I figured in that case I should run a second tail light. I bought a rechargeable headlight/taillight pair. The headlight showed the percent remaining, and a taillight charge was supposed to last...

I'm sure they shorted when I mashed them under the center stand mounting. With the extension, I can see if the circuit still gets power, then put the splice in a shielded location. If the circuit is dead, I don't really need a tail, brake, or turn light, just reflectors. If I want it to work, I...

In August, 2024 I ordered two 50ml bottles of "5210 Solder Multi-material repair adhesive Oil based glue." It turned out to be super glue. Once I knew what it was, I figured it would harden in the bottle within a month. I opened one and stored the other in the refrigerator. That screw-down cap...

Failed. I came to see that the slack is necessary to slide the controller out of its cubbyhole. It cost me half an inch to splice the spot that was obviously bad, with an open jacket and at least two broken conductors. Nothing in back lights, so I ordered a 90cm extension. The tinned conductors...

That's a dad-gummed porcupine. He looks harmless after a veterinarian removed his quills, but salt is porcupine catnip, and a porcupine will chew up a bicycle tire if sweaty hands have touched it. I once emptied a 15-shot semiautomatic rifle by lantern light at an attacking porcupine 10 feet...

Thank you! If I'd known then what I know now... This stuff should be great with uninsulated crimp terminals, which make it easier to be sure of a good crimp connection. I don't know about shrink ratios. I ordered 3:1 in lengths of 3.5", I think. A longer length of adhesive should resist tugging...

Those are where the corners of the base of the center stand mashed it. As you can see, I was able to pull a lot of slack out of the controller compartment. It was zip-tied alongside the motor cable, which, along with the brake line, hid it when I bolted the center stand (marvelous piece of...

I hear you. I've had to modify seat and handlebar positions of 3 e-bikes that were supposed to fit me. After the first one, I learned to study the geometry to see how much modification would be necessary. The other day I looked at a Specialized Como online. They asked my height and shin length...

Thanks. That looks like the stuff used to bundle cables coming from handlebars, and it can be applied after the repair. I'm better off than I thought. I can buy a 90cm male extender, which will allow me to make a splice at a safer location. Three years ago, I bought what I thought was a...

I removed the center stand from my Abound. It's wonderfully made. I thought pulling the hinge pin would be asking for trouble, so I brushed it off and sprayed moving parts with silicone, and it works better than new. I turned on my headlight at sundown so drivers would see me coming. When I got...

Phase current could heat up a point of resistance. When the motor was acting up, the trouble spot might be detectable by touch or an IR thermometer.