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it will come from the grid, from a mix of nuclear, hydro, solar, wind, and gas. same as it does today but a different mix plus lots of storage - both battery and gravity. these are easy problems to solve and electric cars are inherently cheaper and more reliable once they reach scale and...

well, not really. we're talking about a specific bike - or at least a specific motor system which in a road bike means 23-30lb. not significant. i specifically mentioned rider weight, and 160-190lb probably covers most riders of this type of bicycle. a small difference, for sure, but in the...

yes, and even 150w of assist is really quite a lot on a road bike, that's the difference between a spirited amateur and a pro in a lot of cases. you won't go "fast" up a hill, but you'll go a lot faster than almost any human powered bike. beware though, with the small internal battery that sort...

yes, the harmonic pin ring was TQ's big innovation, announced a few years ago. very cool to see it in products and the net result, a smaller, lighter motor!

yes, and your math is right that it takes 300w to go up a 10% grade (200lb total) at 8mph. if your speed drops down to 4 or 5, there’s no way to get it back up other than increasing rider power to 225+ w, the X20 isn’t strong enough for that.

personally i’d skip the wheel top thing and do it right. get a 12 speed sram axs RD, cassette, shifter, chain, and change the driver on your rear wheel. probably around $700 in parts but it’ll be a sweet upgrade, as good as a brand new factory AXS drivetrain! they sell the RD and shifter in a...

this is true due to the slow rotational speed of the wheel at those low speeds; the actual 23nm of torque x 45rpm (4mph) gives you only half the power than 90rpm does at 8mph. i've seen somewhat higher numbers than you reference though - output power of around 100w at 4mph and 150w at 6mph. full...

less (weight, complexity, suspension, wires, accessories) is more get and use a varia go tubeless learn how things work, even if you’re not going to work on them yourself live in a place where the rights and safety of cyclists are respected, if not prioritized don’t buy things online if you...

I ride with my kids for weekend outings. In the event or catastropic failure or other emergency, lock the bikes up and jump on a bus, train, Waymo, uber.

it’s a very tight fit. i remember quite a lot of wiggling and coaxing and testing various directions to see if there was a clip or pin or additional fastener, and i’m pretty sure there wasn’t.

Any individuals report on noise is, well, individual. I’ve had a gen 1 creo and an x20 bike, both carbon frames, and neither is “silent.” the creo was far noisier in certain situations, especially high cadence low speed climbing, but the x20 is also audible at almost any assist level below 15mph...

they actually claim zero drag when not pedaling, which is a ridiculous claim for a mid drive, of course there isn’t drag when the cranks aren’t turning. hopefully just bad use of language lol.

wait and see on the HPR40 - there are some very troubling reports that it shouldn’t be ridden with the motor off, and always has drag when the cranks are turning. I can’t believe this is true but so far that’s what TQ is saying, and the motor design seems to not have a clutch.

i just can’t believe this! but whether it’s damaging it or not, i can’t imagine it feels that great to be spinning the geared motor with every pedal stroke!

take a deep dive into their methodology, it’s pretty thorough. it’s fairly heavily weighted towards utility riders, so it had me asking questions like “how many of the grocery stores within a couple miles could i ride to without using any high stress routes?” ditto for schools, churches, movie...

this is sometimes an interesting look, updated people for bikes ratings of bike infrastructure in the US, Canada, and selected (not sure by what metric) other countries. of course the top five of any significant size in the US are all college towns, and the top two are in Northern California...

looking back at their press statements, note the following this is super sketch!!! of course it doesn’t have drag when coasting, it’s a mid drive. the chain and pedals aren’t turning when you’re coasting. the fact that they didn’t say “no/minimal drag when off or above the cut off” is really...

that would be a deal breaker for me - and i’d imagine most other road riders if there is drag when the motor is off, or if it can’t be ridden with the motor truly off. haven’t seen this mentioned in any of the early reviews.

creo 2 uses DUB crank arm interface with a BB30 bottom bracket, discussed at a bit of length here https://forums.electricbikereview.com/threads/creo-2-carbon-cranks.54924/ there seem to be options out there down to around 150, maybe 135, probably with an axle that you can't use.

i have a commuter with a front 500w motor. ride it up steep san francisco hills all the time, sometimes with a kid on the back! in a wierd way, it’s better than rear drive if you’re pedaling hard because it makes the bike two wheel drive. the only time it feels really wierd is when you’re...