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0
votes
1answer
48 views

Problems with Edge 510 Cadence/Speed Sensor

I have been looking online for a while on how to fix a bug with my Garmin Edge 510 Cadence/Speed sensor but no luck, and now I'm indoors training it's more important that it works (so I can get ...
7
votes
2answers
177 views

Have there been designs of bikes with stepless transmission?

Today we studied about mechanical stepless drives, which appear to be used quite widely in industry machines, such as CNC lathes. The concept of varying the transmission ratio arbitrary, without ...
2
votes
3answers
295 views

Annual technology gap of high end road bikes [closed]

Somewhat general question. Could someone give me an idea of how much of a 'technology gap' there is between annual models of high-end road bikes (~$2000)? Specifically: Which components generally ...
4
votes
3answers
919 views

Analysis of Stages high-speed data

A while ago Stages added a new feature to their power meter: High Speed Data recording added to capture pedaling force (kgf) and torque (Nm) 64 times per second for post ride analysis (.csv ...
8
votes
2answers
286 views

Benefits of newer racer bikes over older ones?

10 Years ago, when I was 14, I got my first road bike. It costed around 1000 € (~1350$), and I have been using it every year. I have cycled at least 1.000 km every season. Now, I have started to ask ...
2
votes
2answers
102 views

Software to track and plan group rides

Is there software / online resources / Drupal distribution capable of letting riders self-track and perhaps rank various routes around a location? The end goal is to let new riders pair up with more ...
2
votes
3answers
269 views

Bike Speedometer Accuracy [duplicate]

What factors should one look for when purchasing a speedometer? Does wired vs wireless or anything else factor into its accuracy?
4
votes
1answer
385 views

DIY computational fluid dynamics for aerodynamics?

Has anyone experimented with using consumer 3D software to do CFD-like aerodynamics simulations? Specifically, I was thinking: Setup the bike on a trainer (with rider) Take a series photos, and ...
3
votes
2answers
255 views

How fast does new technology “trickle down” to lower models?

Is there a "rule of thumb" for how fast new technology "trickles down" from higher-end to lower-end bike models? Can you for example say that a mid-end bicycle frame or suspension fork is as good as ...
8
votes
2answers
670 views

What are the main improvements in suspension technology in the last 10 years?

How much has bicycle suspension technology evolved in the last 10 years? I am thinking about both rear and front suspension. What have been the major breakthroughs that all bicycle manufacturers are ...
5
votes
3answers
1k 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 ...
44
votes
24answers
33k 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 ...
8
votes
4answers
4k 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 ...
9
votes
5answers
8k views

Are road-bike suspension forks still manufactured, if so, where?

For a few years, road bike suspension forks were used at Paris-Roubaix, but now they seem to have disappeared. Are they still being manufactured? If not, why (aside from UCI regulation) did they not ...
4
votes
3answers
627 views

Are there any locking options that lock the drive train of a bicycle?

I've been looking into the different kind of locks available, and came upon this short documentary about bike thefts in London. Seems that just about any lock on the market can be easily beaten by a ...
24
votes
7answers
7k views

What headset/radio products exist for bike-to-bike communication?

I commute to work by bike, sometimes I share the journey with a co-worker. The problem is because of the wind and distance between the bikes, it's very hard to hear what the other person says. It ...
7
votes
9answers
857 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 ...
23
votes
6answers
601 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, ...