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Search: Posts Made By: RChung
Showing results 1 to 31 of 31
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07-10-20, 10:39 AM
Replies: 69
Views: 2,812
Posted By Hermes

Welcome back RChung Many of the posters in this...

Welcome back RChung Many of the posters in this thread are no longer active. It may be fun to start a new aero thread or continue this one as we have new TT riders such as burnthesheep, TMonk , and...
07-10-20, 09:33 AM
Replies: 69
Views: 2,812
Posted By burnthesheep

I have been less than impressed at the sensor...

I have been less than impressed at the sensor offerings and prices.

I did bite on a $20 bluetooth anemometer I can then toss the data on top of my VE data to work with a more ďrealĒ airspeed.
Forum: Road Cycling
07-08-20, 05:20 PM
Replies: 125
Views: 4,916
Posted By asgelle

And don'y forget, this was for Northern CA....

And don'y forget, this was for Northern CA. That's a pretty limited geographical area (even accounting for those who might have come from out of district). What about riders in the other 48 1/2...
Forum: Road Cycling
07-07-20, 07:29 PM
Replies: 125
Views: 4,916
Posted By asgelle

Uh Oh. It looks like someone isn’t keeping up...

Uh Oh. It looks like someone isn’t keeping up with the Marginal Gains podcast.
Forum: Road Cycling
06-25-20, 07:26 AM
Replies: 85
Views: 3,710
Posted By asgelle

I can't imagine any use case where a heart rate...

I can't imagine any use case where a heart rate monitor (or even a speed sensor) wouldn't work just as well as a power meter with 10% error.
Forum: Road Cycling
06-25-20, 06:50 AM
Replies: 85
Views: 3,710
Posted By rubiksoval

You can probably find a used Powertap G3 for $300...

You can probably find a used Powertap G3 for $300 bucks or so. I've had one for six years. Has worked very well 100% of the time.

Aeropods aren't power meters, so definitely wouldn't spend money...
Forum: Road Cycling
06-22-20, 03:57 PM
Replies: 37
Views: 982
Posted By asgelle

That is true. For a non-aero frame changing the...

That is true. For a non-aero frame changing the rim in the rear will be 25% less effective than putting that same rim in the front. For a highly aero-optimized frame, the difference will be less...
Forum: Road Cycling
06-14-20, 04:24 PM
Replies: 57
Views: 2,830
Posted By rubiksoval

:lol: No, we're most definitely not putting...

:lol:

No, we're most definitely not putting out 1400 watts coming out of every corner. If even half the field could hit 1400 watts in a one-off sprint I'd be pretty surprised.

In fact, if...
Forum: Road Cycling
06-05-20, 12:02 PM
Replies: 22
Views: 642
Posted By MoAlpha

Has your vision been affected?

Has your vision been affected?
Forum: Road Cycling
06-04-20, 10:46 AM
Replies: 98
Views: 5,068
Posted By tomato coupe

The "experiment" has fatal flaws, so no...

The "experiment" has fatal flaws, so no conclusion can be drawn from the results. That is not expectation bias.

Bad science is when you lend credence to the results of a bad experiment because...
Forum: Road Cycling
05-28-20, 03:22 PM
Replies: 103
Views: 4,541
Posted By ridethecliche

I think I can fully agree with your comment on...

I think I can fully agree with your comment on another thread: re you have no idea who your target audience is on the road forum!
Forum: Road Cycling
05-23-20, 06:01 AM
Replies: 65
Views: 2,711
Posted By rubiksoval

My cautionary tale of HR: When I was a...

My cautionary tale of HR:

When I was a massively over-eager junior I trained solely with hr (right before the first powertap came out, when the only other option was $2000 SRMs). It's hilarious...
Forum: Road Cycling
02-15-20, 11:22 AM
Replies: 42
Views: 2,209
Posted By ThermionicScott

The fact that some people prefer circular rings,...

The fact that some people prefer circular rings, others prefer ergonomics-oriented oval rings (BioPace), and still others prefer power-oriented oval rings just goes to show that one kind isn't...
Forum: Road Cycling
12-19-19, 10:35 AM
Replies: 129
Views: 8,783
Posted By Hermes

Thanks for the history on TAS and the...

Thanks for the history on TAS and the relationship between the Reynolds number and wind speed. When I heard that VSC planned to offer aero testing, I lobbied for and became a beta tester prior to...
Forum: Road Cycling
12-16-19, 02:43 AM
Replies: 129
Views: 8,783
Posted By canklecat

Everything in this most recent GCN Tech video....

Everything in this most recent GCN Tech video. Faster for cheap. Not necessarily more power -- that's training.

https://youtu.be/hd0fXhDkH84

But as other folks already suggested, an aero body...
Forum: Road Cycling
12-13-19, 03:00 PM
Replies: 129
Views: 8,783
Posted By Seattle Forrest

I saw something yesterday you would like if you...

I saw something yesterday you would like if you lived in a colder place, Chung style measurements for coefficient of friction for various ski/wax/temperature combinations combined with power curves...
Forum: Road Cycling
12-13-19, 08:48 AM
Replies: 129
Views: 8,783
Posted By asgelle

Skin is slow.

Skin is slow.
11-03-19, 07:39 PM
Replies: 728
Views: 145,349
Posted By Hermes

Okay. UCI rule is the tip of the aerobars can be...

Okay. UCI rule is the tip of the aerobars can be 10 cm above the pads. BtS, yours looks like a lot more.

So let's assume you never do a UCI rule enforced race. I am not sure that is a very fast...
Forum: Road Cycling
08-02-19, 11:23 AM
Replies: 88
Views: 9,680
Posted By asgelle

Wheels, frame, helmet, clothes each give about...

Wheels, frame, helmet, clothes each give about the same advantage comparing best to worst. https://cyclingtips.com/2019/07/nerd-alert-podcast-ep-1-go-faster-with-aerodynamics-made-simple/
Replies: 73
Views: 11,416
Posted By CliffordK

What a mess. Apparently the OP was aware of...

What a mess.

Apparently the OP was aware of the notes on the web page, but had also talked to employees of the company (with an electronic paper trail). In particular with respect to a payment...
Forum: Road Cycling
07-08-19, 10:19 AM
Replies: 11
Views: 1,040
Posted By HTupolev

Not to a degree that's very significant compared...

Not to a degree that's very significant compared with the huge inaccuracy of guessing CdA based on height, weight, and rough bicycle type.

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Differences in power transfer between frames...
Forum: Road Cycling
06-27-19, 04:32 PM
Replies: 120
Views: 10,691
Posted By guachi

It isn't apples to oranges. Team Pursuit is...

It isn't apples to oranges. Team Pursuit is something Wiggins actually competed in at the Olympics. In 2016. And he won gold. In World Record time. It's a four minute bike race and he was literally...
Forum: Road Cycling
06-24-19, 02:18 PM
Replies: 120
Views: 10,691
Posted By Seattle Forrest

Luckily if you have a power meter and free...

Luckily if you have a power meter and free software, you can use the RChung method to do your own wind tunnel testing any time you like. Position, clothing, you name it.
06-18-19, 09:14 AM
Replies: 728
Views: 145,349
Posted By Hermes

ERO / Jim Manton is a great service for fitting...

ERO / Jim Manton is a great service for fitting and testing. My wife and I have over 12 hours of testing. It is different from tunnel testing in that one has to ride several laps per test to get a...
06-16-19, 10:36 PM
Replies: 728
Views: 145,349
Posted By Heathpack

Based on aerotesting last year at ERO Sport, Giro...

Based on aerotesting last year at ERO Sport, Giro Empires are demonstrably fast shoes. With the general concept being laced shoes are faster than boa shoes.

Ive done all my bike fits at ERO since...
Forum: Recumbent
06-14-19, 08:06 PM
Replies: 41
Views: 10,596
Posted By JanMM

Still have not measured the CdA of my bikes. ...

Still have not measured the CdA of my bikes.
But do have a general idea of what CdA means.
Forum: Recumbent
06-14-19, 12:00 PM
Replies: 41
Views: 10,596
Posted By Steamer

I retract my earlier suspicions. Robert is an ok...

I retract my earlier suspicions. Robert is an ok guy.

I guess. :)
Forum: Recumbent
06-13-19, 07:59 PM
Replies: 41
Views: 10,596
Posted By BlazingPedals

I wasn't suspicious so much as I was unable to...

I wasn't suspicious so much as I was unable to add anything useful.
Forum: Road Cycling
06-13-19, 06:18 AM
Replies: 79
Views: 9,018
Posted By burnthesheep

Bike parts meeting the earlier "clean air" before...

Bike parts meeting the earlier "clean air" before it's churned by other bike parts or body parts are more important to aero (excluding the body itself).

Most handlebars that are round are bigger...
Forum: Road Cycling
06-12-19, 10:37 AM
Replies: 79
Views: 9,018
Posted By caloso

I love the Thursday night Airport Ride, but I...

I love the Thursday night Airport Ride, but I usually can't make it due to shuttle duty for kids' soccer practice. But one night I was finally able to make it and took off on the intermediate sprint...
Forum: Road Cycling
04-25-19, 08:26 PM
Replies: 67
Views: 4,663
Posted By asgelle

Donít assume everyone has the same priorities you...

Donít assume everyone has the same priorities you do. Riding tires with 0.005 higher Crr is like always riding a 0.5% steeper road than the one youíre on. For me thatís important. I donít expect...
Showing results 1 to 31 of 31


 
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