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I had to look up "neutral position." Burt says it's his fit window within which personal adjustments can be made for adaptive fitting. He also says adaptive fitting might require going outside his neutral position. In 2020 I bought a Radrunner mostly because if an EBR review. The reviewer was...

I guess a road biker tries to have his spine horizontal at the shoulder blades. If he didn’t tilt his pelvis at all, he’d have to arch his back 90 degrees, squeezing his heart, lungs, and other organs. Maybe I can figure out how to set up a camera so I can measure how far I lean forward and how...

I may remove a back wheel once a year, so it wouldn't be worth the cost and the hassle of installation. It helps me to start by shifting to high gear (outer sprocket) and then roll the chain off the chain ring for plenty of slack.

Sold! Some of those who complained that it broke submitted photos showing the seat clamped out at the end. The manufacturer says that's for 20kg riders. One of my bikes has the saddle tipped forward at 18.5 degrees, as far as I could get it. On my other bike, it's only 15.8. This device should...

Now you're talking! The seat clamp appears to be about 12" behind the crank and 28" behind the handgrips. With the seat that far back, I'll bet the suspension post isn't necessary because the rider's weight would be more on the pedals and less on the seat. I've read that to adjust a seat fore...

I wouldn't buy a bike like that. The seat is almost over the pedals and the bars are way too low.

In 1970, BMW motorcycles switched to Porsche brake linings, which they said wouldn't fade. I discovered that they would absorb moisture and grab. On a motorcycle, I think that's more dangerous than fading. Approaching a stop in the rain, I'd start with the rear pedal.Being single-leading-show...

I went over the bars in October, 1961. I'd just paid top dollar for a Raleigh that was outwardly decrepit. As I rode home, a homicidal boy hit the back of my front wheel with a basketball. The decrepit fender crumpled, locking the wheel. The bike went end over end. The geometric relationship...

Asphalt around here is old and rough. With my first e-bike, at the tires’ minimum of 30 psi, bumps were severe on my wrists and spine. Control was very poor. A springy seat and suspension post made little difference. The geometry of this bike was entirely different from that typical of 3-speeds...

Last summer, I'd ridden my Abound daily for 20 months when I removed the center stand to clean and lube. Bolting it back on, I crushed the rear light cable. I e-mailed customer service to ask the price of a new tail light. I got a quick response saying a new headlight, listing for $6, had been...

I think my bike weighs 90 pounds. When I recharged last time, the display said the battery was down to 22% and I'd been 270 miles. I pedal mostly without the motor, but a few motor watts help on hills. With my first e-bike, I was totally reliant on the motor until I moved the seat back several...

https://www.bloomberg.com/news/articles/2025-09-22/trump-cancels-trail-bike-lane-grants-deemed-hostile-to-cars?utm_campaign=bn&utm_medium=distro&utm_source=yahooUS NHSTA has suddenly changed its tune. A few weeks ago, their website said helmets were the least effective way to reduce fatalities...

I was not familiar with the term “assumptive.” I assumed it had something to do with making an ass of you and me. That didn’t make sense. I’m not the one who said his batteries had no balancing ability, who recommended slow charging, who said a battery with matched cells would stay in balance...

That's what I thought 3 years ago. I got no answer from Radpower, so I measured broken spokes. My measurements were 5mm too long because the J bends had straightened somewhat before the heads popped. The threaded end of a replacement spoke extended 5mm past the nipple, but the rim, and I...

In my experience, spoke length means the distance from the rim where the nipple comes out, to the near edge of the hole in the hub. It was tricky to get a tape into position to measure a 125mm spoke on my rear wheel. A 240mm spoke should be easier to measure.

I turn my headlight on at sundown or in rain. A motorist or pedestrian might assume the coast was clear after a quick glance from 100 yards, and in low light I’m not as visible as I might think, without a light. I know my headlight wasn’t intended to be run during the day because it dims the...

i’ve analyzed the last 14 times I charged my Abound battery, rated at 47.1 volts and 678.2 watt hours. My display tells me what percent of the charge remains. If I subtract that from 1, I know what percent of the charge I’ve used. Multiplying that by 678.2 would tell me how many watt hours I...

I discovered that the KT controllers on two bikes would draw a little current unless the battery was switched off. If I switched a battery off, I could find the same voltage after it sat a month or more. The battery on my Abound switches itself off when I shut off the controller. I'd had my...

Yes, for example, an M5 x 0.8 is typically torqued at 5 Nm for a clamping force of about 1400 pounds, but my designer used them to clamp a polyethylene chain guard without washers under the screw heads. That would be like driving on polyethylene in a Cadillac Escalade with studded tires. The...

Hi. No offence meant here, either. Just my five cents! An ISO 2936 H8 hex key is only 12.5% longer than an H6, but I can apply twice as much torque with the H8. The slightly fatter handle has a big effect. The screws for my stem, riser, and handlebar clamp are marked for maximum torque only...