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Forum: Road Cycling
08-07-19, 12:03 AM
Replies: 95
Views: 5,292
Posted By RChung

Two things: 1. It shouldn't surprise you...

Two things:

1. It shouldn't surprise you that I've actually done the calculations. No matter what gear you're in, if you drop your cadence (which, of course, drops your speed) your pedal force...
Forum: Road Cycling
08-06-19, 03:08 PM
Replies: 88
Views: 7,031
Posted By RChung

Thanks for completely changing my mind....

Thanks for completely changing my mind. Invaluable quantitative evidence and real-world experience all in one brief issuance.
[/QUOTE]
RShantz is right. I've worked with Olympic and World Cup...
Forum: Road Cycling
07-30-19, 02:43 AM
Replies: 200
Views: 13,598
Posted By RChung

Great first post. You'll fit in well here. ...

Great first post. You'll fit in well here.



More likely you're miles ahead in a matter of minutes cuz your wife doesn't want to be anywhere near you.
Replies: 68
Views: 5,598
Posted By RChung

This is right. If the company won't back specific...

This is right. If the company won't back specific repeated assurances or promises made by their employees, any information you receive from any employee of the company cannot be trusted. *None of...
Forum: Road Cycling
07-13-19, 01:46 PM
Replies: 32
Views: 1,119
Posted By RChung

Yeah. I don't believe all the claims. However,...

Yeah. I don't believe all the claims. However, people whose testing I believe claim that Nopinz and Rule 28 both make socks that are faster than bare skin. There may be others but I'm not interested...
Forum: Road Cycling
07-08-19, 11:08 AM
Replies: 32
Views: 1,495
Posted By RChung

Constant power output is time-minimizing only...

Constant power output is time-minimizing only when conditions are constant. If conditions are variable (like, changes in gradient or wind), the time-minimizing strategy is also variable. The amount...
Forum: Road Cycling
06-27-19, 08:51 AM
Replies: 21
Views: 1,592
Posted By RChung

There's a huge range in accuracy (and precision)...

There's a huge range in accuracy (and precision) among pumps. What that means is that it's hard to evaluate someone else's post that they run X psi.

Unless you have a way to evaluate your pump and...
Forum: Road Cycling
06-25-19, 07:55 AM
Replies: 120
Views: 9,467
Posted By RChung

Your statement about Wiggins, as you *should*...

Your statement about Wiggins, as you *should* know, was incorrect for two reasons: 1) Campenaerts holds the record, not Wiggins. 2) Wiggins (and Campenaerts) rode with power meters -- they just...
Forum: Road Cycling
06-24-19, 09:11 PM
Replies: 120
Views: 9,467
Posted By RChung

Wiggins absolutely positively used a PM in...

Wiggins absolutely positively used a PM in training and prep for the hour. Victor Campenaerts (who is the fastest for the hour) did, too. Peter Sagan uses a PM. All three of those guys are faster...
Forum: Road Cycling
06-24-19, 08:52 AM
Replies: 42
Views: 1,975
Posted By RChung

The focus on cadence has caused more harm than...

The focus on cadence has caused more harm than good.
Forum: Road Cycling
06-23-19, 09:01 AM
Replies: 120
Views: 9,467
Posted By RChung

Different people are motivated by different...

Different people are motivated by different things. Congratulations on finding something that works for you.
Forum: Recumbent
06-14-19, 12:40 PM
Replies: 41
Views: 7,350
Posted By RChung

Um, thanks, but even I don't think I'm OK. ...

Um, thanks, but even I don't think I'm OK.

I'm just saying I didn't have ulterior motives.
Forum: Road Cycling
06-13-19, 11:36 AM
Replies: 79
Views: 7,671
Posted By RChung

You might be surprised. I've measured the CdA of...

You might be surprised. I've measured the CdA of several recumbent riders, and many riders on TT bikes. Most of the (unfaired) recumbent riders measure somewhere in the .17 to .35 m^2 range. Most of...
Forum: Road Cycling
06-13-19, 10:35 AM
Replies: 79
Views: 7,671
Posted By RChung

Yep. Actually, in terms of total "A", handlebars...

Yep. Actually, in terms of total "A", handlebars and rear wheels (and front rim shape and depth), and head tube size, have almost no effect. Their effect is almost entirely through the Cd part of...
Forum: Road Cycling
06-12-19, 09:25 AM
Replies: 79
Views: 7,671
Posted By RChung

Then ride it on your TT.

Then ride it on your TT.
Forum: Road Cycling
05-18-19, 12:24 PM
Replies: 154
Views: 17,406
Posted By RChung

This really isn't a political post, just a post...

This really isn't a political post, just a post to clarify things so you can more effectively complain to the correct jurisdiction. The responsibility for different roads falls on four different...
Forum: Road Cycling
04-28-19, 08:20 AM
Replies: 67
Views: 3,909
Posted By RChung

We know that additional bike weight doesn't...

We know that additional bike weight doesn't matter when it's flat, so you can add a lot of extra weight to a bike on flat terrain without costing you much in power. We know that as the road gets...
Forum: Road Cycling
04-27-19, 02:32 PM
Replies: 67
Views: 3,909
Posted By RChung

We can actually calculate the difference in...

We can actually calculate the difference in weight that's equivalent to a difference in rolling resistance. That difference will depend, of course, on whether you're riding on a flat road or up a...
Forum: Road Cycling
04-26-19, 10:51 AM
Replies: 67
Views: 3,909
Posted By RChung

That's kinda appropriate. The one time I used...

That's kinda appropriate. The one time I used Gatorskins I kept looking down to see if I had a flat. It was a false flat.
Forum: Road Cycling
04-26-19, 10:48 AM
Replies: 67
Views: 3,909
Posted By RChung

There's a lot of variation across individuals...

There's a lot of variation across individuals but, mostly, human beings are pretty much perceptual dullards. Whether something is perceptible to human senses isn't always a good standard. It depends...
Forum: Road Cycling
04-26-19, 08:34 AM
Replies: 67
Views: 3,909
Posted By RChung

That was just an example to convert Crr into...

That was just an example to convert Crr into something recognizable. Differences in Crr between two tires scale exactly like differences in slope: it doesn't just apply at .005. The difference...
Showing results 1 to 21 of 21


 
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