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Type: Posts; User: RChung; Keyword(s):

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by RChung
Replies
123
Views
2,668

### Not when the TTT is team pursuit.

Not when the TTT is team pursuit.

by RChung
Replies
123
Views
2,668

### Ah, yes. I remember that car. That freewheel...

Ah, yes. I remember that car. That freewheel transmission was a vestigial remnant of the transmission needed for the previous generation two-stroke "Shrike" engine. That is, for the two-stroke it was...

by RChung
Replies
123
Views
2,668

### Heat dissipation is clearly a part of the reason...

Heat dissipation is clearly a part of the reason but it's not all of it, nor is it a fixed fraction. On a bike on the road, convective cooling dominates, so you will get differential amounts of...
4. ## Thread: Questions about light for long distance event

by RChung
Replies
58
Views
1,709

### Haven't had that pleasure. I understand he's good...

Haven't had that pleasure. I understand he's good at coasting, which can be a nice skill when you don't have much power.
5. ## Thread: Questions about light for long distance event

by RChung
Replies
58
Views
1,709

### I try to make him regret his decisions, as should...

I try to make him regret his decisions, as should we all.
6. ## Thread: Questions about light for long distance event

by RChung
Replies
58
Views
1,709

### Perhaps so, but since this was Steamer's estimate...

Perhaps so, but since this was Steamer's estimate would you address his assumptions and calculations?
7. ## Thread: Questions about light for long distance event

by RChung
Replies
58
Views
1,709

### The faster you ride the less time you save.

The faster you ride the less time you save.
8. ## Thread: Questions about light for long distance event

by RChung
Replies
58
Views
1,709

### 18 minutes on a 200 km ride would be just a bit...

18 minutes on a 200 km ride would be just a bit less than 2 hours on a 1200 km ride.
9. ## Thread: Whats your speed around 275 watts?

by RChung
Replies
31
Views
1,326

### Cool, ain't it? I've learned a lot from measuring...

Cool, ain't it? I've learned a lot from measuring CdA (and a little bit of measuring Crr). The main thing I've learned is that there are lots of small things you can do that together add up to...
10. ## Thread: Whats your speed around 275 watts?

by RChung
Replies
31
Views
1,326

### That's what Aerolab is for.

That's what Aerolab is for.
11. ## Thread: Whats your speed around 275 watts?

by RChung
Replies
31
Views
1,326

### http://anonymous.coward.free.fr/wattage/cda/watts-...

http://anonymous.coward.free.fr/wattage/cda/watts-cda.png
12. ## Thread: You know, it's possible to estimate CdA and Crr without a power meter

by RChung
Replies
44
Views
1,512

### GPS's determine speed by the change in location...

GPS's determine speed by the change in location over time. They have the time piece right but they can be off by a couple of meters in location. That's not much but if you're trying to measure speed...
13. ## Thread: You know, it's possible to estimate CdA and Crr without a power meter

by RChung
Replies
44
Views
1,512

### Sorry to take so long to respond. Real world life...

Sorry to take so long to respond. Real world life interruptions.

You've read the the .pdf, right? Slide 70 discusses integrating the power equation up to a work equation for any segment of a...
14. ## Thread: You know, it's possible to estimate CdA and Crr without a power meter

by RChung
Replies
44
Views
1,512

### The simplest way is to convert from a...

The simplest way is to convert from a speed-and-power equation to a work-and-distance equation that solves for a CdA for a given Crr, and vice versa. If you have two runs taken at different initial...
15. ## Thread: Stages Power Meter

by RChung
Replies
71
Views
1,839

### This is why we can't have nice things.

This is why we can't have nice things.
16. ## Thread: Stages Power Meter

by RChung
Replies
71
Views
1,839

### I believe that's what I said. "Depends on your...

I believe that's what I said. "Depends on your uses. I don't think the Stages will be bad for training purposes because training is one of the least demanding things you do with a power meter....
17. ## Thread: Stages Power Meter

by RChung
Replies
71
Views
1,839

### I use the PT, but I've also examined data from...

I use the PT, but I've also examined data from well-calibrated SRMs and Quarqs. If you know what you're doing the parameter estimates can be quite precise and you can check their accuracy. The...
18. ## Thread: Stages Power Meter

by RChung
Replies
71
Views
1,839

### Depends on your uses. I don't think the Stages...

Depends on your uses. I don't think the Stages will be bad for training purposes because training is one of the least demanding things you do with a power meter. [Edited to add:] That's particularly...
19. ## Thread: Pedaling question

by RChung
Replies
41
Views
1,040

### It's always comforting to believe in something no...

It's always comforting to believe in something no matter what objective studies and testing show.

and

Yeah, both were discussed in this recent open-access review article, as well as a review...

by RChung
Replies
122
Views
2,656

### Single leg drills can help your cycling if you...

Single leg drills can help your cycling if you only pedal with one leg.
21. ## Thread: Pedaling question

by RChung
Replies
41
Views
1,040

### Sometimes, but only rarely and not for very long....

Sometimes, but only rarely and not for very long.

Most of the people posting here don't know what they're talking about. Pedaling technique is a red herring.

Researchers were putting...
22. ## Thread: An \$8 Power Meter?!

by RChung
Replies
62
Views
1,699

### Doesn't surprise me. You can do a pretty good job...

Doesn't surprise me. You can do a pretty good job of estimating average power over a hill climb with a stopwatch, a GPS signal, and knowing your total weight. As long as the wind isn't blowing, you...
23. ## Thread: PowerTap Wheel Options

by RChung
Replies
53
Views
945

### Sky might not be such a good comparison. There's...

Sky might not be such a good comparison. There's a reasonable chance they cut a deal, and that doesn't apply to most of us. Plus, oddly, it's not always the case that the pros have need for higher...
24. ## Thread: Tracks in Paris, France

by RChung
Replies
6
Views
234

### Bordeaux is 250m and indoor.

Bordeaux is 250m and indoor.
25. ## Thread: PowerTap Wheel Options

by RChung
Replies
53
Views
945

### If you have the same BB on both bikes then...

If you have the same BB on both bikes then swapping cranks isn't particularly difficult. However, I use different length cranks on my road and TT bikes, and for me shorter TT cranks decreases overall...
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