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Questions tagged [technology]

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29
votes
7answers
963 views

What is a good camera arrangement for city riding?

I would like to have continuous camera coverage while commuting on city streets, in order to have evidence in any collision. I have been experimenting with an ATC3K mounted on the pannier rack, ...
8
votes
4answers
5k views

Tapered Head Tube

I am wanting to understand how a tapered head tube works. Does it require a tapered steerer, or is it the case that the steerer is a consistent diameter top and bottom and just the bearings differ in ...
68
votes
27answers
56k views

Why aren't Tour de France riders going any faster?

I was having a look at the average speeds of the winner of the Tour de France over the years on this page. To help things along I put the data into LibreOffice and produced a plot: I put on the chart ...
16
votes
4answers
10k views

What freewheel mechanism designs are used in bicycles?

What are the various freehub mechanism designs that have been designed and or put into production? (doesn't need to have been made necessarily!) A good post will contain: A description of the design,...
8
votes
9answers
1k views

Bicycle innovations in the pipeline?

The (road) bike I bought 25 years ago is very similar to my current bike. (The derailleur on my new bike adjusts exactly the same way). The materials of my current bike are vastly different than the ...
12
votes
3answers
2k views

Why are almost all bicycle tyres cross-ply/bias ply and not radial construction?

Most times when I see a failed bicycle tyre (one where the threads are showing through) they look something like this, with diagonal threads clearly visible Here's a random manufacturer's cutaway ...
5
votes
3answers
3k views

What does a cyclocomputer actually measure for calculating the speed of the bike?

What does a cyclocomputer actually measure for calculating the speed of the bike? Is it the time for one revolution $T$ or is it the number of revolutions $n$ per given time $t_0$? If the radius of ...