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Search: Posts Made By: RChung
Showing results 1 to 50 of 94
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05-08-22, 05:03 PM
Replies: 79
Views: 2,344
Posted By HTupolev

What are you comparing with what? Under many...

What are you comparing with what? Under many circumstances, it's true that the total aerodynamic drag on a bike+rider system is far higher than the rolling resistance. But aerodynamic drag happens...
Forum: Triathlon
05-05-22, 09:22 AM
Replies: 38
Views: 1,440
Posted By cyclezen

As noted, there are quite a number of good...

As noted, there are quite a number of good resources which you can refer to for basic triath training, books and internet. But you also have a 14 yr old, who will have her own ideas on what she...
04-12-22, 05:39 PM
Replies: 6
Views: 208
Posted By genejockey

Totally agree. If you don't want to/can't afford...

Totally agree. If you don't want to/can't afford to buy one new, you might find one on Craigs List or FB Marketplace for a lot less. I've had one for a year and some, and it's great! When I used...
Forum: Road Cycling
03-23-22, 02:37 AM
Replies: 52
Views: 3,173
Posted By HTupolev

How big of a discrepancy were you looking for,...

How big of a discrepancy were you looking for, and how much precision did your testing have?

The speed advantage of latex tubes over butyl can be on the order of a couple tenths of a mph. It's...
Forum: Road Cycling
03-13-22, 09:29 AM
Replies: 38
Views: 1,021
Posted By UmneyDurak

When I needed to replace my cycling computer...

When I needed to replace my cycling computer temporary I used Jepster. Works pretty well. Detects all the sensors. Has auto start and pause.
Forum: Road Cycling
01-17-22, 04:17 PM
Replies: 61
Views: 3,046
Posted By asgelle

Josh Poertner has spoken often about how much...

Josh Poertner has spoken often about how much energy aero wheels save sitting in a peloton and how significant that can be at the end of a race.
Forum: Road Cycling
01-17-22, 02:37 PM
Replies: 61
Views: 3,046
Posted By HTupolev

The CdA of a human body does not drop to zero...

The CdA of a human body does not drop to zero when that person is hired to race professionally.
Forum: Road Cycling
01-14-22, 10:20 AM
Replies: 61
Views: 3,046
Posted By TMonk

TBH I'm not certain. I think I'm riding a very,...

TBH I'm not certain. I think I'm riding a very, very old gen HED Jet 6 with a 25 mm Corsa Speed and a latex tube. The tube and tire class are good choices, but the rest of it leaves something to be...
Forum: Road Cycling
01-14-22, 09:39 AM
Replies: 61
Views: 3,046
Posted By burnthesheep

Nope, you're wrong. You don't even have to...

Nope, you're wrong.

You don't even have to measure the inflated tire with calipers and do the math on that one. For the inflated size, the max tire for aero even quoted by HED themselves on...
12-09-21, 10:04 PM
Replies: 86
Views: 4,224
Posted By ofajen

Here is Tom Anhaltís article from back in 2009...

Here is Tom Anhaltís article from back in 2009 where he describes how higher pressure lowers rolling resistance but at some point ( depending on many factors) increases suspension losses in the rider...
12-05-21, 01:37 PM
Replies: 86
Views: 4,224
Posted By WhyFi

What was that - the good ol' Chang Method? ...

What was that - the good ol' Chang Method?







:innocent:
Forum: Road Cycling
11-18-21, 02:13 PM
Replies: 7
Views: 415
Posted By MoAlpha

Chronically denervated muscles should show...

Chronically denervated muscles should show atrophy and fasciculations, (small twitchy movements at rest). If you're concerned ask your doc to refer you for electromyography and nerve conduction...
10-29-21, 07:52 PM
Replies: 84
Views: 3,504
Posted By WhyFi

I just realized that this was in General, not the...

I just realized that this was in General, not the 41.

Even. Better.
10-29-21, 01:43 PM
Replies: 38
Views: 1,255
Posted By genejockey

It's not "Ask the opinions of dozens of strangers...

It's not "Ask the opinions of dozens of strangers on the internet", is it?
10-24-21, 05:49 AM
Replies: 12
Views: 1,247
Posted By Digger Goreman

Mrs. Goreman is 100% French and relates that, in...

Mrs. Goreman is 100% French and relates that, in the past, it took 10 years to get motorists to coexist with bikes. However, using national recognition campaigns was well worth this step. Now it is...
Forum: Road Cycling
10-22-21, 08:08 AM
Replies: 36
Views: 1,347
Posted By aclinjury

Right. In my experience, one of the major...

Right. In my experience, one of the major "advantage" of being able to train long hours per week is that:
1. your routine doesn't have to be "efficient" because you will gain fitness based on sheer...
Forum: Road Cycling
10-22-21, 07:37 AM
Replies: 20
Views: 663
Posted By atwl77

I think this would depend on the specific set of...

I think this would depend on the specific set of aerobars - or to be more precise, how much adjustment the specific model provides. I use the Profile Design Sonic Ergo 35a, where the pads have some...
Forum: Road Cycling
10-18-21, 11:31 AM
Replies: 36
Views: 1,347
Posted By esarhaddon

There is a connectIQ data field for Garmin...

There is a connectIQ data field for Garmin devices that allows you to dual record multiple power meters to the same fit file. (ANT+ Power Meter by takura87 -...
Forum: Road Cycling
10-17-21, 11:11 PM
Replies: 36
Views: 1,347
Posted By Seattle Forrest

You might be able to use your phone to record one...

You might be able to use your phone to record one or both of them.
09-27-21, 09:28 AM
Replies: 200
Views: 6,194
Posted By gpburdell

As a runner who also cycles I'm seeing a roughly...

As a runner who also cycles I'm seeing a roughly 3:1 distance ratio and slightly less than 1:1 time ratio in terms of cycling vs running calorie burn estimates (running higher/hr). These seem to be...
Forum: Road Cycling
09-08-21, 03:15 PM
Replies: 132
Views: 10,085
Posted By sw20

bikedataone has some interesting looking apps

bikedataone has some interesting looking apps
09-01-21, 06:33 AM
Replies: 8
Views: 824
Posted By njkayaker

Map dashboard. Especially, if you have a...

Map dashboard.

Especially, if you have a large screen model like the 1030.

https://apps.garmin.com/en-US/apps/8633c044-afff-4834-b71f-9f10113b5276

There's a 4 field version and a 6 field...
08-29-21, 05:55 AM
Replies: 8
Views: 824
Posted By njkayaker

GRouteLoader does the same thing as the RWGPS app...

GRouteLoader does the same thing as the RWGPS app (which isn’t available for the 1030+). It does other stuff too. It also is available as a widget (which means you can use it while recording an...
Forum: Road Cycling
08-27-21, 11:35 AM
Replies: 132
Views: 10,085
Posted By njkayaker

GRouteLoader. Works like the RWGPS app which...

GRouteLoader.

Works like the RWGPS app which isn't available for the 1030+.
Forum: Road Cycling
08-27-21, 09:50 AM
Replies: 132
Views: 10,085
Posted By PeteHski

I'm currently using:- Powerslider Heart...

I'm currently using:-

Powerslider
Heart Rate Zones Chart
Climb Gauge
BBS Power Targets (although it doesn't work properly with TBT routing switched on)
Forum: Road Cycling
08-27-21, 09:21 AM
Replies: 132
Views: 10,085
Posted By dscohen

Right now, I'm using the following Third-Party...

Right now, I'm using the following Third-Party Data Fields:
- Strava Relative Effort
- PowerSlider
- What's My FTP? - Xert
- SPH Graph - SPHGraWH
- In The Zone (my favorite right now)
...
08-22-21, 04:44 PM
Replies: 8
Views: 878
Posted By canklecat

Ditto, aero kit -- jersey, at a minimum -- and...

Ditto, aero kit -- jersey, at a minimum -- and helmet offer most bang for the buck in getting aero. Next to getting and holding an aero position, which is free but uncomfortable. So plan on burning...
08-22-21, 12:19 PM
Replies: 8
Views: 878
Posted By Maelochs

I agree with RChung---and not just because he is...

I agree with RChung---and not just because he is an engineer and a math genius who has spent a lifetime studying this stuff.

Your position on the bike is probably the biggest thing you can change,...
08-22-21, 12:19 PM
Replies: 8
Views: 878
Posted By burnthesheep

Road, TT, or triathlon? Recreational use or...

Road, TT, or triathlon? Recreational use or mixed in with race use? Road or criterium? These will help people point you the right way. People buy race bikes for varied reasons, so know use helps....
Forum: Road Cycling
08-09-21, 03:32 PM
Replies: 117
Views: 4,791
Posted By terrymorse

Not true. The case rate among the vaccinated is...

Not true. The case rate among the vaccinated is considerably less than among the non-vaccinated. It's currently about one fourth as much in our county.



The healthiest thing you can do is get...
07-25-21, 06:35 PM
Replies: 78
Views: 2,986
Posted By DaveLeeNC

FWIW, GPS measurement of elevation is VERY poor...

FWIW, GPS measurement of elevation is VERY poor compared to horizontal position. If your GPS device could read satellite data from satellites on the opposite side of the planet, then elevation...
Forum: Road Cycling
07-23-21, 10:02 AM
Replies: 61
Views: 3,272
Posted By GhostRider62

For an endurance rider, FTP isn't the be all and...

For an endurance rider, FTP isn't the be all and end all. You want to be able to ride at a very high percentage of FTP for a long time. Without a PM or lactate meter, how would one optimize...
Forum: Road Cycling
07-23-21, 06:50 AM
Replies: 61
Views: 3,272
Posted By MinnMan

Coming from you, I'll take that as a win. As to...

Coming from you, I'll take that as a win. As to most of my post, about what I learned: You can tell me that I should have learned it differently, or that I should have drawn other conclusions. But I...
06-25-21, 11:16 AM
Replies: 28
Views: 1,666
Posted By caloso

I never knew that, but that makes total sense! ...

I never knew that, but that makes total sense!

When I was an undergrad, my GF had an apartment on the north side of campus. I had a Schwinn World Sport and I think my lowest gear was probably...
06-24-21, 03:25 PM
Replies: 82
Views: 6,095
Posted By asgelle

It turns out the white horse was two inches...

It turns out the white horse was two inches taller than the black one https://startsat60.com/media/lifestyle/jokes/daily-joke-a-man-bought-two-horses-but-couldnt-tell-them-apart
06-19-21, 11:17 PM
Replies: 100
Views: 4,991
Posted By cyccommute

I have a purple one. PM me and itís yours.

I have a purple one. PM me and itís yours.
06-19-21, 08:21 PM
Replies: 100
Views: 4,991
Posted By woodcraft

IKR, I would hate to lose mine. One...

IKR, I would hate to lose mine.

One disconnected from a Crank Bros tool is only about 10g more, 'tho...

It depends on the type of riding being done, but these days folks are getting off the...
06-17-21, 09:59 AM
Replies: 100
Views: 4,991
Posted By woodcraft

I carry one & have used it to shorten chain to...

I carry one & have used it to shorten chain to single-speed after catastrophic RD events.

Once on road in remote area, once 5+ miles out on fire road.

This one is good and compact, 'tho it...
06-10-21, 03:07 PM
Replies: 110
Views: 4,782
Posted By tomato coupe

One person's bug is another person's feature.

One person's bug is another person's feature.
Forum: Road Cycling
05-31-21, 02:17 PM
Replies: 71
Views: 3,124
Posted By WhyFi

Quackery.

Quackery.
Forum: Road Cycling
05-31-21, 08:57 AM
Replies: 71
Views: 3,124
Posted By GhostRider62

It is not hard to measure a difference of 5-10...

It is not hard to measure a difference of 5-10 watts.

An average recreational cyclist moving at 17 mph could see an increase to 17.5 with small changes in tires with same power input. Large...
Forum: Road Cycling
05-24-21, 11:15 AM
Replies: 79
Views: 3,393
Posted By Doomrider74

You may want to look at my current thread, which...

You may want to look at my current thread, which is about exactly the same thing. It might be of use.
Forum: Road Cycling
05-22-21, 04:41 PM
Replies: 79
Views: 3,393
Posted By asgelle

I've been accumulating them as well. I'm almost...

I've been accumulating them as well. I'm almost embarrassed to say I enough to have one dedicated to each bike I ride with two left over that I've lent to people curious about riding with power.

I...
Forum: Road Cycling
05-11-21, 08:47 AM
Replies: 40
Views: 3,503
Posted By Phatman

Bumping this thread up, almost 20 years later....

Bumping this thread up, almost 20 years later. Iíve owned this bike for the duration, and yesterday I went to take it for a ride and realized my poor bike had a crack in the headtube/toptube weld....
04-21-21, 07:15 PM
Replies: 2
Views: 632
Posted By curbtender

Yes, in Rodeo it comes out at the Pacific and San...

Yes, in Rodeo it comes out at the Pacific and San Pablo intersection, near the bridge over the railroad tracks. From the Hercules side, you were able to go through a chain link gate on to 3rd street....
04-20-21, 06:12 PM
Replies: 2
Views: 632
Posted By curbtender

Bay Trail, Hercules to Rodeo

They finally are finishing the paving. A new bridge crossing was added also. I'm guessing it might be open in a week or two....
Forum: Road Cycling
04-15-21, 02:56 PM
Replies: 43
Views: 3,272
Posted By Seattle Forrest

Here are a couple tips, I hope any of them winds...

Here are a couple tips, I hope any of them winds up being useful. 🙂

How much you should ride in each zone depends on goals, like getting faster (once a long distance or a sprint?), build up a base...
04-13-21, 02:32 PM
Replies: 115
Views: 9,218
Posted By asgelle

For one, those who want to beat their brother in...

For one, those who want to beat their brother in law.
04-10-21, 08:36 PM
Replies: 47
Views: 2,793
Posted By Koyote

You're blaming a country because something shoddy...

You're blaming a country because something shoddy was produced within its borders? Well, by that standard, I've got a bone to pick with the United States over a certain pickup truck I once owned. I...
Forum: Road Cycling
01-31-21, 04:03 PM
Replies: 24
Views: 2,425
Posted By HTupolev

If we're talking about the 2006 publication, it...

If we're talking about the 2006 publication, it was actually just two road tubulars - one 21mm and one 28mm - where he specifically measured a performance improvement from a pressure reduction. But...
Showing results 1 to 50 of 94
 


 
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