Vertically aligned carbon nanotubes triple the density of lithium batteries

Re:Vertically aligned carbon nanotubes triple the density of... by seanc on Wednesday October 07, 2020 @11:53AM (#24709459)

I heard somewhere that in Holland every bicycle + lock weighs 5kg. If you have a cheap 5kg bike no one wants it and you don't have to lock it. If you have an expensive 1.5kg bike you need a lock that weighs 3.5kg to protect it.

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Re:Vertically aligned carbon nanotubes triple the density of... by pritovido on Wednesday October 07, 2020 @03:30PM (#24711769)

In tour de France, bicycles under 6kgs are forbidden. Bicycles under this weight are incredible expensive and dangerous. Using metals like titanium and carbon fiber.

Most light and simple(no suspension) road bicycles weight usually 10 kilos, most mountain bikes do weight 15-20 kgs.

In Holland, most bicycles you see on the street are simple and cheap.

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Re:Vertically aligned carbon nanotubes triple the density of... by cestith on Wednesday October 07, 2020 @05:26PM (#24712933)

I think seanc probably has the idea of the saying right but with the wrong specific numbers.

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Re:Vertically aligned carbon nanotubes triple the density of... by snovv_crash on Wednesday October 07, 2020 @12:12PM (#24709670)

It's more like 20% of the bike's cost should be in locks.

And a 1.5kg bike? What kind of bikes are you looking at?

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Re:Vertically aligned carbon nanotubes triple the density of... by rocqua on Thursday October 08, 2020 @03:17AM (#24716706)

You're off by a large amount. I'd say its closer to 15kg, and bike quality and weight aren't that correlated here. It's a lot more about maintenance and not being rusted to hell w.r.t. how likely a bike is to get stolen.

In general, since we are so flat a country, bike weight doesn't matter much. We'd rather have extra fancy stuff on a bike than have a lighter bike.

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