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Frame for endurance events for 17-year old junior

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Frame for endurance events for 17-year old junior

Old 01-22-21, 07:56 PM
  #26  
carleton
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Originally Posted by jajacek View Post
I already ordered Fuji size 56. We will keep chinese carbon bike as backup as it belongs to our club.

I wonder whether we need powermeter crank or not? I've read your post carleton regarding power crank accuracy. Unfortunately we can't afford SRM. Maybe we could ask if someone has used SRM or Power2Max, which seems to be pretty descent on paper. We have Power2Max together with Rotor crankset in my son's road bike. So far we haven't been doing any workouts based on power. We only use it to analyze and compare certain efforts. I've read articles regarding use of powermeter as aero testing field and virtual wind tunnel on the track, on Fitwerx website. I can't post links again but it's called "The Relentless Pursuit of Cycling Aerodynamics". I wonder if we have enough knowledge to use it to correct position to lower CdA and test different hand positions, skinsuits, wheels and eventually different aerobars. Some people around here offer aero testing. But when I asked, they will use Golden Cheetach and Notio Konnect. Not sure yet, what the cost is. I've read that Garmin is planning to release it own cheap aeropod. But if I'm correct it always requires powermeter to spit out proper results.
For endurance racing, speed, cadence, and heart rate recorded every 1 second provide more than enough data to make critical training decisions. Power is nice to have, but the other metrics tell most (if not all) of the story of what is happening.

A great thread on the subject: Training and Racing with Power Meters and other computers

Even though the thread is a few years old, the concepts discussed remain true.

Also know that the words "power meter" mean a lot of different things to a lot of different companies. All of them are trying to get your money. Your son needs a power meter that is appropriate for how he intends to use it and the data he and his coach will analyze. Also, if you don't analyze it, it's wasted money.

As far as modern offerings go, maybe bump that thread linked above and ask what's new and popular these days.
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Old 03-25-21, 06:20 AM
  #27  
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Our Fuji frame finally arrived. Now I have to fit it with a crank. I have been advised Rotor Alhu with 144 BCD. Not sure about crank lenght. He has extremely long lengs. 90 cm inseam. He prefers 170mm on the road, and that's what we planned for the track. Though not sure if it is right choice. He is able to generate very high cadence, close to 200. If necessary, we could potentially buy Power2Max NG Eco for it.

I've read one of your posts carleton, where you have written, that you observed that you're not getting any advantage going over 140 RPM. This is the kind of data we have to analyze. To choose optimum gearing. My son is not taking part in any sprinting events. But he may try Kilo. His coached tested him recently and he did 1:07 not giving it 100% and on sub optimum equiopment and 51x13 gearing, that he felt was too hard. His main events are going to be individual pursuit and elimination race. But he will take part in Omnium, Scratch and Point Race as well. Might be selected for team pursuit as well.
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Old 03-27-21, 05:46 PM
  #28  
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Originally Posted by jajacek View Post
Our Fuji frame finally arrived. Now I have to fit it with a crank. I have been advised Rotor Alhu with 144 BCD. Not sure about crank lenght. He has extremely long lengs. 90 cm inseam. He prefers 170mm on the road, and that's what we planned for the track. Though not sure if it is right choice. He is able to generate very high cadence, close to 200. If necessary, we could potentially buy Power2Max NG Eco for it.

I've read one of your posts carleton, where you have written, that you observed that you're not getting any advantage going over 140 RPM. This is the kind of data we have to analyze. To choose optimum gearing. My son is not taking part in any sprinting events. But he may try Kilo. His coached tested him recently and he did 1:07 not giving it 100% and on sub optimum equiopment and 51x13 gearing, that he felt was too hard. His main events are going to be individual pursuit and elimination race. But he will take part in Omnium, Scratch and Point Race as well. Might be selected for team pursuit as well.
Take advice from the coach who has seen your son ride and knows his strengths and weaknesses...especially over a bunch of internet strangers reading 2nd hand info from his dad (no offense).

Internet advice is great for amateurs and those coaching themselves. Personalized coaching is much better. It seems like your son already has that. So, anything we say is immediately trumped by the coach's advice.

If you are gonna listen to us over the coach, then why have a coach?
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Old 03-28-21, 02:32 AM
  #29  
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Originally Posted by carleton View Post
Take advice from the coach who has seen your son ride and knows his strengths and weaknesses...especially over a bunch of internet strangers reading 2nd hand info from his dad (no offense).

Internet advice is great for amateurs and those coaching themselves. Personalized coaching is much better. It seems like your son already has that. So, anything we say is immediately trumped by the coach's advice.

If you are gonna listen to us over the coach, then why have a coach?
I agree. But his coach is almost 70-year old. He is not up to date with equipment. He has no experience with powermeters and modern equipment at all and thinks equipment makes no difference and junior can ride on anything. Even an alloy bike and alloy wheels as long as he trains right. Old school. So we need some external advice. There is very few people here who have any idea about modern equipment and they are not keen to share their knowledge. And we aspire to medals in European Championship.

We also need some good aerobar. We have no clue which one. The one we have is more than 10 years old and has no adjustments. My son complaints that in team pursuit, he can't see a wheel in front of him when riding on this aerobar.
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Old 03-28-21, 09:26 PM
  #30  
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Originally Posted by jajacek View Post
I agree. But his coach is almost 70-year old. He is not up to date with equipment. He has no experience with powermeters and modern equipment at all and thinks equipment makes no difference and junior can ride on anything. Even an alloy bike and alloy wheels as long as he trains right. Old school. So we need some external advice. There is very few people here who have any idea about modern equipment and they are not keen to share their knowledge. And we aspire to medals in European Championship.

We also need some good aerobar. We have no clue which one. The one we have is more than 10 years old and has no adjustments. My son complaints that in team pursuit, he can't see a wheel in front of him when riding on this aerobar.
It is probably true that your son can win on anything, but equipment does make a difference. When you're racing among the top 1%, equipment alone can be the difference between a podium and 10th place.

As far as cranks go, with your son's long legs, he can essentially use whatever crank length he likes, which sounds like 170. This article is a fairly good summation of some studies on the topic. You could deduced from it that crank length in the commonly used spectrum of 165-175mm makes no difference to power output. Fit would be the primary concern being that his leg movement doesn't affect his aero positioning
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Old 03-29-21, 06:41 AM
  #31  
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Look at Zipp aerobars. The Vuka Bull base bar is available with a 40mm drop, which will help him get his hands low for a good starting position. And the Vuka skis offer a lot of flexibility for finding the right aero position for him.

There are more aero setups available, but until you know the ideal position for him, it's not really worthwhile to invest in any of those more high-end aerobar set ups.
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Old 03-30-21, 05:47 PM
  #32  
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And maybe invest in an adjustable stem. It will give a lot of flexibility to sort a position out before putting money towards something higher end
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