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Search: Posts Made By: Carbonfiberboy
Showing results 1 to 50 of 1000
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05-26-22, 10:00 AM
Replies: 9
Views: 223
Posted By Carbonfiberboy

You are very well educated and I've been riding...

You are very well educated and I've been riding bikes for 70 years and am not totally uneducated. Right now for obvious reasons I'm researching the age-related loss of skeletal muscle mass and...
Forum: Road Cycling
05-25-22, 11:03 AM
Replies: 7
Views: 208
Posted By Carbonfiberboy

The PNW had a record cold rainy spring and...

The PNW had a record cold rainy spring and there's only so much indoor riding on my rollers that I'm willing to do. May has been a better month, a 5 Sunday month and Sunday has been my group ride day...
Forum: Road Cycling
05-25-22, 10:42 AM
Replies: 26
Views: 377
Posted By Carbonfiberboy

IME, cycling is the best back exercise there is....

IME, cycling is the best back exercise there is. That said, position is important. Roll your pelvis forward and flatten your lower back. That might help. Try not pushing forward on the pedal as it...
05-25-22, 10:05 AM
Replies: 9
Views: 190
Posted By Carbonfiberboy

Just to complicate things some more, there's also...

Just to complicate things some more, there's also the issue of a center cutout. Some woman absolutely have to have a cutout, others don't notice a difference one way or the other.
05-24-22, 03:58 PM
Replies: 9
Views: 223
Posted By Carbonfiberboy

Well yes, you want a used MTB. Craigslist. An...

Well yes, you want a used MTB. Craigslist. An upright position is not at all what one needs - that's the worst thing for a bad back. The upright position puts compression loads on your spine when you...
05-24-22, 03:19 PM
Replies: 9
Views: 190
Posted By Carbonfiberboy

Well. . . technically . . .the usual issue with...

Well. . . technically . . .the usual issue with cycling butt pain is loss of oxygen in the tissues compressed between the saddle and the pelvic bones. They don't like that and they tell you about it....
05-24-22, 11:48 AM
Replies: 38
Views: 1,073
Posted By Carbonfiberboy

The issues I notice with folks who are getting...

The issues I notice with folks who are getting older and also folks of any age are simply about stuff going wrong with their bodies, relationships, and minds. The biggest issue seems to be, do they...
05-23-22, 09:21 PM
Replies: 9
Views: 190
Posted By Carbonfiberboy

The question is, why is it sore? Almost every new...

The question is, why is it sore? Almost every new rider needs to break in their butt. It's normal. The best solution I've seen is to ride for 30', no more, every day or almost every day. A couple of...
05-23-22, 10:58 AM
Replies: 3
Views: 146
Posted By Carbonfiberboy

The number doesn't matter.

The number doesn't matter.
Forum: Road Cycling
05-23-22, 10:54 AM
Replies: 32
Views: 772
Posted By Carbonfiberboy

I've always wanted one ever since I rode near one...

I've always wanted one ever since I rode near one in an event. I just don't need one, but that's different. It's about the same vintage as a 5200 -5500 which are common and thus cheaper, which...
05-21-22, 06:26 PM
Replies: 5
Views: 179
Posted By Carbonfiberboy

Right. My last visit to a cardiologist, he ran my...

Right. My last visit to a cardiologist, he ran my numbers on his phone and prescribed the 81mg aspirin. I took it for a couple weeks, finally did a little investigating and stopped taking it IIRC, I...
Forum: Road Cycling
05-21-22, 06:11 PM
Replies: 22
Views: 940
Posted By Carbonfiberboy

Last time I bought a new bike was a long time...

Last time I bought a new bike was a long time ago. Maybe they don't do it like this anymore. The sales person was very experienced. He put me on the bike I thought I wanted, in the size I thought I...
Forum: Road Cycling
05-21-22, 11:42 AM
Replies: 20
Views: 671
Posted By Carbonfiberboy

I used to have one on our 9 speed triple equipped...

I used to have one on our 9 speed triple equipped tandem. It caused more problems than it solved so I took it off.
05-21-22, 11:37 AM
Replies: 38
Views: 1,240
Posted By Carbonfiberboy

Well yes, I think most of us have missed that....

Well yes, I think most of us have missed that. Not in our noses though, rather in our paranasal sinuses:

https://ejo.springeropen.com/articles/10.1186/s43163-020-00011-7

However the literature...
05-21-22, 10:14 AM
Replies: 38
Views: 1,240
Posted By Carbonfiberboy

Yeah, sodium nitrate. I've been using the reagent...

Yeah, sodium nitrate. I've been using the reagent grade stuff from Amazon for years, 1g every day before breakfast. Doubt that timing matters.
05-21-22, 12:11 AM
Replies: 112
Views: 6,555
Posted By Carbonfiberboy

If and when, and you upload your device to a...

If and when, and you upload your device to a website which gives you results in kilojoules, 1 kJ of energy expended is approximately equal to 1 kCal burned, which calculation allows for the...
05-20-22, 04:50 PM
Replies: 112
Views: 6,555
Posted By Carbonfiberboy

Ignore his calorie burned estimates. However it's...

Ignore his calorie burned estimates. However it's totally possible to do what he does. Due to the magic of the cube relationship between power and speed, he only needs to ride at 82 watts to average...
05-20-22, 10:20 AM
Replies: 38
Views: 1,240
Posted By Carbonfiberboy

And thank you for your kind response in spite of...

And thank you for your kind response in spite of my rather rude post, for which I apologize. I could have done better.
Forum: Road Cycling
05-20-22, 09:26 AM
Replies: 24
Views: 403
Posted By Carbonfiberboy

When I was in my teens, I used toeclips and...

When I was in my teens, I used toeclips and straps for city riding all the time. I commuted to work and etc. I used the tennis shoes of the day and rat trap pedals. The pedals wore grooves in the...
05-19-22, 09:33 PM
Replies: 38
Views: 1,240
Posted By Carbonfiberboy

There's always the google machine. It works for...

There's always the google machine. It works for me. Caveat: requires interest in the subject matter to the extent of looking things up for oneself. E.g. a quick google for "ncbi sodium nitrate"...
05-19-22, 03:05 PM
Replies: 19
Views: 510
Posted By Carbonfiberboy

There will be a slight difference in drag, maybe...

There will be a slight difference in drag, maybe a watt or 2, depending on how many jockey wheels the SS bike uses and assuming you don't mean fixed, you mean freewheel but only one gear. It also...
Forum: Road Cycling
05-19-22, 12:17 PM
Replies: 35
Views: 916
Posted By Carbonfiberboy

Huh. My 5200 is the bike I'd vote as "mostly...

Huh. My 5200 is the bike I'd vote as "mostly likely to continue going where I point it." Very smooth and comfortable on crowded rides. Stable, no wobble ever, up to 60 mph. I'd say something's wrong...
05-19-22, 09:30 AM
Replies: 38
Views: 1,073
Posted By Carbonfiberboy

Other than what rsbob said, in terms of possibly...

Other than what rsbob said, in terms of possibly having a prevention effect, it depends on what sort of riding/training you do. If you commonly do hard rides/intervals, a recording HRM can keep track...
05-18-22, 09:58 PM
Replies: 79
Views: 4,191
Posted By Carbonfiberboy

Mostly the trick is to smile and wave while not...

Mostly the trick is to smile and wave while not holding up traffic. People like that. I had one scary episode when one of the group riders gave the finger to a car who passed too close, too fast....
05-18-22, 10:46 AM
Replies: 10
Views: 1,127
Posted By Carbonfiberboy

Many times the rims are not the problem. It's...

Many times the rims are not the problem. It's that the spokes are too heavy and not DB. We're running CX-Rays on our tandem, 36H, 285 lb. team, never a problem. Before the CX-Rays, we ran 14-15 DB.
05-18-22, 10:22 AM
Replies: 38
Views: 1,073
Posted By Carbonfiberboy

BF has been more help to me than any other...

BF has been more help to me than any other resource. It's real time and the science of aging is still very young. Books are histories. OTOH, if you're young, like in your 50s, there are the Friel...
05-18-22, 09:45 AM
Replies: 38
Views: 1,073
Posted By Carbonfiberboy

You are speaking my language. That's exactly how...

You are speaking my language. That's exactly how it happened for me, too, 15 years ago. It's still that way, still good, still learning. I think learning keeps one young. "So little time, so much to...
05-17-22, 03:12 PM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

My current goal and favorite event ride, 9000'+,...

My current goal and favorite event ride, 9000'+, 154 miles, 800 rider limit, assigns bib numbers 1-up in order of rider age, #1 being the oldest. I've ridden it a few times since I turned 70 and had...
05-17-22, 12:51 PM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

Yesterday, my wife and I drove for 2 hours to get...

Yesterday, my wife and I drove for 2 hours to get to a mountain trail where it wasn't raining and had a very nice hike. As many of you know we ride a road tandem. My wife hikes as quickly as she can,...
05-16-22, 08:57 PM
Replies: 8
Views: 317
Posted By Carbonfiberboy

If you had the bike fitted, one would assume that...

If you had the bike fitted, one would assume that the fitter addressed upper body positioning, including hip angle and torso/upper arm angle. IF those things were addressed and changes made to get...
Forum: Touring
05-15-22, 07:06 PM
Replies: 78
Views: 3,859
Posted By Carbonfiberboy

Copied from the OP, an OMG don't do it like this....

Copied from the OP, an OMG don't do it like this. He's probably on a Brooks B17 with the nose tilted up and that's the reason he can't roll his pelvis forward and flatten his back. Looks painful.
...
Forum: Touring
05-15-22, 11:44 AM
Replies: 78
Views: 3,859
Posted By Carbonfiberboy

From Wikipedia:...

From Wikipedia: https://en.wikipedia.org/wiki/Drag_(physics)
05-15-22, 11:28 AM
Replies: 139
Views: 17,020
Posted By Carbonfiberboy

Or maybe not:...

Or maybe not: https://www.bikefitadviser.com/blog/oval-chainrings
Also:
https://www.youtube.com/watch?v=jtJ7eIyqQ0E
05-15-22, 11:04 AM
Replies: 12
Views: 441
Posted By Carbonfiberboy

Great ride report! Beautiful country.

Great ride report! Beautiful country.
Replies: 17
Views: 443
Posted By Carbonfiberboy

I like a 5 am start in the late spring or summer....

I like a 5 am start in the late spring or summer. One starts in the dark or almost dark and you get to see the day start. It's beautiful to see, and then at the other end there won't be so much dark...
05-13-22, 10:36 PM
Replies: 8
Views: 210
Posted By Carbonfiberboy

One of the tricks to getting a good electrolyte...

One of the tricks to getting a good electrolyte balance is eating less salt in your daily diet. It turns out that the more salt you eat, the more salt you sweat and thus have to replace. And salt...
05-13-22, 10:13 PM
Replies: 139
Views: 17,020
Posted By Carbonfiberboy

I agree with jonathanf2 up there. My wife has...

I agree with jonathanf2 up there. My wife has 151mm cranks on our tandem and 165mm on her trainer bike. She doesn't really notice the difference and she's 73. My proper size cranks would be 165, but...
05-13-22, 06:55 PM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

The HBCD sounds good. The question is can you...

The HBCD sounds good. The question is can you consume 60+g/hr for hour after hour - or maybe with your training you won't need to, but that's what I do. I also mix my malto at 7/1 by weight with...
05-13-22, 04:13 PM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

Thanks so much for all this post, not just the...

Thanks so much for all this post, not just the part I'm quoting. It's very helpful and is stuff I've been curious about for a long time.

I'm perhaps a bit of an outlier, or maybe I'm just good at...
05-13-22, 12:11 PM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

Yeah, that's what everybody says. Never did...

Yeah, that's what everybody says. Never did another ride like it. I had 11 TrainigPeaks All-time power records. Avg. power 118w, FTP 161w, avg. Normalized Power™ 161w, weighted avg. power 143w. avg....
05-13-22, 11:28 AM
Replies: 139
Views: 17,020
Posted By Carbonfiberboy

Most of that is just training effect. You get...

Most of that is just training effect. You get better at what you do. It's hard to tell what's going on when one switches back and forth. The best is simply to get one's numbers, i.e. crank/leg...
Forum: Road Cycling
05-12-22, 09:03 PM
Replies: 35
Views: 845
Posted By Carbonfiberboy

This is really pretty simple to calculate. Go...

This is really pretty simple to calculate. Go climb a hill which causes you to bog down. Note your speed and cadence. Enter a speed and cadence calculator like this one:...
05-12-22, 12:23 PM
Replies: 139
Views: 17,020
Posted By Carbonfiberboy

This section of the thread is quite odd. One...

This section of the thread is quite odd. One should have realized that the "burn" is caused by one's muscles consuming carbohydrates at an increased rate: the tech is here:...
05-12-22, 11:12 AM
Replies: 13
Views: 376
Posted By Carbonfiberboy

The significance is that age is going to start...

The significance is that age is going to start giving you a little cachet. You'll start getting, "I hope I'm as strong as you when I grow up" kind of thing. Maybe not yet, maybe another 8 years or...
05-12-22, 10:59 AM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

Agreed. "There's a flaw in everything." CTL is...

Agreed. "There's a flaw in everything." CTL is calculated off TSS, which is calculated off Normalized Power™, and also has a default decay rate, so there's a whole chain of assumptions where B may...
05-11-22, 09:02 PM
Replies: 3
Views: 167
Posted By Carbonfiberboy

What I did in your situation: Performance Bike...

What I did in your situation: Performance Bike has a return policy. Anything you buy, including a saddle, can be returned as long as it is in perfect shape and in the original packaging. I'd buy 3 at...
Forum: Road Cycling
05-11-22, 08:54 PM
Replies: 33
Views: 762
Posted By Carbonfiberboy

My wife and I had that exact situation. I've been...

My wife and I had that exact situation. I've been a road cyclist all my life, rode centuries in my teens, that sort of thing. Then life and career got in the way and I quit riding. About 27 years...
05-11-22, 08:19 PM
Replies: 7
Views: 547
Posted By Carbonfiberboy

IMO an absolutely tight chain between captain and...

IMO an absolutely tight chain between captain and stoker is a must. Each rider needs to be able to feel the pedaling of the other rider. I think that conventional timing chains have too much slack....
05-11-22, 05:27 PM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

I don't think holding a high CTL is a good idea...

I don't think holding a high CTL is a good idea at all, but that depends on what you mean.. For me it's worked best to go hiking in September, then back on the bike, focus on pedaling drills,...
05-10-22, 07:30 PM
Replies: 62
Views: 2,071
Posted By Carbonfiberboy

Yeah, 14K in a 300 is a lot,10K more doable....

Yeah, 14K in a 300 is a lot,10K more doable. There's a often used section for 300s and 600s which has a really steep long hill about 100k from the finish. It's kinda fun to be there when the riders...
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