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#1
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road bike questions
1) When you ride a road bike, should your upper
back/neck section be "concave", i.e. just hang on the shoulders, or should it be "convex", like an arc from one shoulder to another? 2) Is there a technique to braking? When do you use the left hand (the front brake), when the right, and when both (save for an emergency situation, I get that). By instinct, it seems I use the front much more. (Am I normal? ) 3) What happens if you pedal slow, while the bike moves fast? Do you contribute to the speed just a tiny bit, but you don't notice it, or perhaps it is a waste of effort because of the construction, however that works. PS. Apologize for unclear language, typos etc. No sleep or food 48+h. But who needs sleep and food when there are bikes? -- underground experts united |
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#2
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road bike questions
On 2018-10-09 11:21, Emanuel Berg wrote:
1) When you ride a road bike, should your upper back/neck section be "concave", i.e. just hang on the shoulders, or should it be "convex", like an arc from one shoulder to another? Head must be up. Else ... https://www.youtube.com/watch?v=9OrKLGEOVRA 2) Is there a technique to braking? When do you use the left hand (the front brake), when the right, and when both (save for an emergency situation, I get that). By instinct, it seems I use the front much more. (Am I normal? ) I always use both but, of course, the front take the higher braking force. 3) What happens if you pedal slow, while the bike moves fast? Do you contribute to the speed just a tiny bit, but you don't notice it, or perhaps it is a waste of effort because of the construction, however that works. I doubt that would make you even 0.1% faster. PS. Apologize for unclear language, typos etc. No sleep or food 48+h. But who needs sleep and food when there are bikes? Don't do that, it's not good for you :-) -- Regards, Joerg http://www.analogconsultants.com/ |
#3
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road bike questions
Joerg wrote:
Head must be up. Else ... https://www.youtube.com/watch?v=9OrKLGEOVRA Head must be up but should it hang down like into your body, or should it be "supported" up by muscles? It is more a neck and shoulder issue than the head itself. I doubt that would make you even 0.1% faster. I know it wont make me go faster, but what I meant was, does it increase the speed *at all*, even microscopically? This question is a mechanical-physical question, I don't plan to ride like this to gain speed PS. Apologize for unclear language, typos etc. No sleep or food 48+h. But who needs sleep and food when there are bikes? Don't do that, it's not good for you :-) ....what? Apologizing or not eating/sleeping? -- underground experts united http://user.it.uu.se/~embe8573 |
#4
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road bike questions
On 2018-10-09 12:02, Emanuel Berg wrote:
Joerg wrote: Head must be up. Else ... https://www.youtube.com/watch?v=9OrKLGEOVRA Head must be up but should it hang down like into your body, or should it be "supported" up by muscles? It is more a neck and shoulder issue than the head itself. It must be supported by muscles. Otherwise you run a real risk of neck pain. That is something I've heard road bike riders complain about. I doubt that would make you even 0.1% faster. I know it wont make me go faster, but what I meant was, does it increase the speed *at all*, even microscopically? This question is a mechanical-physical question, I don't plan to ride like this to gain speed How could pedaling "empty" decrease the speed? The ticking freehub causes a very small amount of braking force. If you pedal, the ticking will drop in rate, so less drag. However, the difference is probably so miniscule that it really doesn't matter. PS. Apologize for unclear language, typos etc. No sleep or food 48+h. But who needs sleep and food when there are bikes? Don't do that, it's not good for you :-) ...what? Apologizing or not eating/sleeping? No, I meant it's not good to go 48h without sleep. Without food is ok, we all have to do that before a colonoscopy. Just don't do a 100 miler on your road bike during that time. -- Regards, Joerg http://www.analogconsultants.com/ |
#5
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road bike questions
On 10/9/2018 2:21 PM, Emanuel Berg wrote:
1) When you ride a road bike, should your upper back/neck section be "concave", i.e. just hang on the shoulders, or should it be "convex", like an arc from one shoulder to another? 2) Is there a technique to braking? When do you use the left hand (the front brake), when the right, and when both (save for an emergency situation, I get that). By instinct, it seems I use the front much more. (Am I normal? ) 3) What happens if you pedal slow, while the bike moves fast? Do you contribute to the speed just a tiny bit, but you don't notice it, or perhaps it is a waste of effort because of the construction, however that works. PS. Apologize for unclear language, typos etc. No sleep or food 48+h. But who needs sleep and food when there are bikes? I'm curious: Have you ever read a book on the fundamentals of bicycling? There are several we could recommend. They might answer many of the questions you keep raising. -- - Frank Krygowski |
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road bike questions
Joerg wrote:
It must be supported by muscles. Otherwise you run a real risk of neck pain. That is something I've heard road bike riders complain about. Great, this has been my intuition as well! How could pedaling "empty" decrease the speed? The ticking freehub causes a very small amount of braking force. If you pedal, the ticking will drop in rate, so less drag. However, the difference is probably so miniscule that it really doesn't matter. OK, let's rephrase: If one pedals normally, the bike goes forward because the energy from your body and legs is transferred to carry the bike forward. But if you pedal "empty", i.e. too low gear for the current speed, where do the energy go? a) same as above, only you won't notice because the effect is so small; or, b) somewhere else? And if b), what aspect of the construction (or physics perhaps) is the explanation for this? -- underground experts united http://user.it.uu.se/~embe8573 |
#7
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road bike questions
Frank Krygowski wrote:
I'm curious: Have you ever read a book on the fundamentals of bicycling? There are several we could recommend. They might answer many of the questions you keep raising. I have read the following books. Except for "Effective Cycling" (too boring) and "Praktisch Fietsboek" (I don't speak Dutch, but it has tons of illos so in a way have "read" it). %%%% bikes @book{long-distance-cyclists-handbook, author = {Simon Doughty}, ISBN = {0 7136 5819 3}, publisher = {A \& C Black}, title = {The Long Distance Cyclists' handbook}, year = 2001 } @book{complete-road-bike-maintenance, author = {Guy Andrews}, ISBN = {978 1 4081 7093 9}, publisher = {Bloomsbury}, title = {Complete Road Bike Maintenance}, year = 2013 } @book{en-cyklo-pedi, author = {Johan Tell}, ISBN = {978-91-1-307337-8}, publisher = {Nordstedt}, title = {En cyklo pedi}, year = 2016 } @book{effective-cycling, author = {John Forester}, ISBN = {978-0-262-51694-5}, publisher = {Cambridge}, title = {Effective Cycling}, year = 2012 } @book{bike, author = {Daniel Benson and Richard Moore}, ISBN = 9781781312346, publisher = {Aurum}, title = {Bike! A Tribute to the World's Greatest Cycling Designers}, year = 2014 } @book{cykelbok, author = {Staffan Skott}, ISBN = {91-550-3942-1}, publisher = {Tiden}, title = {Cykelbok}, year = 1994 } @book{praktisch-fietsboek, author = {Rob van der Plas}, ISBN = {90 274 9848 2}, publisher = {Spectrum}, title = {Praktisch Fietsboek}, year = 1984 } -- underground experts united http://user.it.uu.se/~embe8573 |
#8
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road bike questions
On 2018-10-09 12:19, Emanuel Berg wrote:
Joerg wrote: [...] How could pedaling "empty" decrease the speed? The ticking freehub causes a very small amount of braking force. If you pedal, the ticking will drop in rate, so less drag. However, the difference is probably so miniscule that it really doesn't matter. OK, let's rephrase: If one pedals normally, the bike goes forward because the energy from your body and legs is transferred to carry the bike forward. But if you pedal "empty", i.e. too low gear for the current speed, where do the energy go? a) same as above, only you won't notice because the effect is so small; or, b) somewhere else? And if b), what aspect of the construction (or physics perhaps) is the explanation for this? It's a) and b). a) is as I explained above, you'd be conteracting the ratcheting of the freehub a ltlle bit but likely too small to even measure. b) is the lion's share. Like a car's idling enigine uses easily 5-10% of it's normal fuel per hour, your legs will not be cranking free of any losses. IOW, it makes absolutely no sense to do this. -- Regards, Joerg http://www.analogconsultants.com/ |
#9
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road bike questions
On 10/9/2018 1:21 PM, Emanuel Berg wrote:
1) When you ride a road bike, should your upper back/neck section be "concave", i.e. just hang on the shoulders, or should it be "convex", like an arc from one shoulder to another? -snip- Or that sideways twisty thing like Patrick Sercu: http://i0.wp.com/ciclismopassion.com...?fit=960%2C691 -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#10
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road bike questions
Joerg wrote:
It's a) and b). a) is as I explained above, you'd be conteracting the ratcheting of the freehub a ltlle bit but likely too small to even measure. b) is the lion's share. Like a car's idling enigine uses easily 5-10% of it's normal fuel per hour, your legs will not be cranking free of any losses. IOW, it makes absolutely no sense to do this. Again, I know it doesn't make sense to do in terms of cycling. Everyone understands that, even a 5 year old. I understand about the "conteracting the ratcheting of the freehub" but the question remains, does it increase the speed, albeit -infinitely small, the *normal* way? -- underground experts united http://user.it.uu.se/~embe8573 |
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