61–70 of 476 posts
I love bicycle tech. Almost everything was invented in the 1890s, and every couple of decades someone tries another old idea. https://onlinebicyclemuseum.co.uk/tour/cyclemotors-motorcycl...
> Almost everything was invented in the 1890s, and every couple of decades someone tries another old idea. What about wireless shifting systems like Di2?
Is it really wireless?
The SRAM one is.
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In the USA, there are more than 52 jurisdictions not including towns and cities and counties, but most (not all) states think of ebikes as being slightly restricted bicycles rather than motorcycles, as long as: - they have functional pedals (otherwise it's a motorcycle of some kind) - they require pedal assist at all times and have some kind of power or speed limitation (anyone can use this, or at least it is least r…
They should require insurance at least. An ebike can cause serious injury to a pedestrian.
some bike vendor told me that the biggest problem with regular to ebike conversion was that regular bike frames were not strong enough to support the additional forces that the electric bike imposed. And it was why the ebikes were much heavier than regular bikes. Does anyone know if that’s true and if that applies to conversions like this one?
Also that’s going to be more applicable with a mid drive or a hub motor than something like this.
Friction drive e-bike conversions were popular years ago. They generally: * Wear tires surprisingly quickly * Absolutely suck in any form of weather or terrain condition (dirt, rain, etc.) * Have ~20% less efficiency than any other drive form. But, they are easy, and they do work.
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for the non bikers, to help us understand, whats wrong with it?
Limited power delivery, horrible in the rain, prevents using fenders
Friction drive e-bike conversions were popular years ago. They generally: * Wear tires surprisingly quickly * Absolutely suck in any form of weather or terrain condition (dirt, rain, etc.) * Have ~20% less efficiency than any other drive form. But, they are easy, and they do work.
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This one is 158 Wh
I saw. Most entry-level ebikes have at least 10ah * 36v batteries; a few lightweight models have 7ah. So this has about half the battery capacity of the cheapest ebikes.
(Of course, "capacity" is misleading, as this will be less efficient than a real e-bike.)
Ouch, love to see a great product like this. However, hate to see that bike theft wasn’t discussed at all. “Easy installation” with two screws seems like a benefit to customers except when they come back to their parked bike only to find their expensive mod also had a hidden feature: “easy uninstallation”.
https://www.pitlock.de/en/set-sichert-2-innensechskantschrau...