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GaryvdM

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Everything posted by GaryvdM

  1. Only saw this reply after I posted the other. This is indeed what I'm saying. If you know this, why did you claim I said "that helmet wearers are wasting their time". They are two very different point of view.
  2. Where did I say this???? Once again you are putting words in my mouth! I never said that, nor do I believe it. Countless times, in threads that you have participated in, including this one, I have made my position clear - what a waste of time because you either don't read, or are incapable of comprehension. But, lets try again.... My position: Yes helmets provide protection for some minor head injuries, e.g. lacerations or grazes. But they provide little protection for serious injures, e.g. brain injuries from high energy impacts. So are people wasting there time wearing helmets, no, because there are, although minor, benefits. The thing is, there is a lot of statistical evidence that shows that when helmet usage increases (usually due to promotion of helmet use, or laws requiring helmet use,) the number of head injuries increases, while at the same time, the number of cyclists decrease. While the reasons to explain why head injuries increase, or cycling rates drop, are still only speculation and highly debatable, it does not detract from what the evidence is directly telling us. There is also a lot of evidence that shows that cycling (both sporting, and utility) is very beneficial to ones health. An so when we look at the balance of advantage, since the promotion of helmet use, or helmet laws cause less people to cycle, these actions have a net reduction of health benefit. And this is what I am against, and why. I particularly against the fear mongering type of helmet promotion, such as this one: http://www.pinkbike.com/photo/1779425/ , or threats to refuse medical treatment to people who have accidents when not wearing helmets (like you once made.)
  3. If I can add to this. A technique to stop the crack running is to drill a small hole at the end of the crack. Close the hole with epoxy glue to prevent water and dirt getting in.
  4. This was not for Critérium du Dauphiné. It was for Tour de Romandie which he did win.
  5. Thanks, that's much more in depth.
  6. The medical condition they were treating was not asthma, but reportedly respiratory infection. Yes, prednisolone administered dermatological is useless for treating respiratory infection, and hence they got a TUE for oral administration. But the administration is not the crux of the matter. The issue is that if there is a rule that states that a TUE for a corticosteroid can only be grated for out of competition use, did the UCI ignore this by allowing it in competition. If such a rule does exist, they have some explaining to do. If it does not exist, and the quote I posted above is incorrect, then yes, it is a non issue.
  7. As opposed to say dermatological which does not require a TUE. Orally, intravenous injection, intramuscular injection, or rectally require a TUE http://www.uci.ch/templates/UCI/UCI2/layout.asp?MenuId=MTU2ODY&LangId=1
  8. Because it is a performance enhancing drug that would give him a unfair advantage? I don't know for sure. That's why I'm asking these questions. There is a conflicting statements in the media. One article I read said: But the UCI claims that they have done nothing wrong. Can anybody familiar with the rules point us to the rule mentioned above?
  9. According to the article, it was for the treatment of his respiratory infection. The question is, if the infection is so bad that he needs a band substance, shouldn't he be sitting it out.
  10. The drug in question is Prednisolone. http://en.wikipedia.org/wiki/Prednisolone
  11. I think you are maybe referring to the issue of the Salbutamol inhaler. This is a different issue.
  12. http://velonews.comp...steroids_331970 What's your opinion? I have a question about the rules: Is there such a thing as a TUE that stipulates that a drug can be take out of competition, but not proceeding or during competition? Edit: More in depth and insightful article: http://inrng.com/2014/06/jdd-uci-froome/
  13. White lightning epic ride is one of the worst lubes there is in terms of chain power efficiency. See the attached report. velo-friction_facts_lube_test.pdf
  14. Welcome back to the hub Johan!
  15. No. Anecdotal evidence is unreliable in contrast to scientific evidence. In this topic, it is particularity prone to confirmation bias. If there was a lack of scientific evidence on the topic, I would consider the anecdotal evidence, but since there is plenty of scientific evidence, I choose to ignore the anecdotal evidence. The scientific evidence can't tell use everything, e.g. for the question of to what degree a helmet prevents injuries in an accident, the scientific evidence is conflicting. It's still more reliable than anecdotal evidence. My reason for asking the question I'm interested to see if there is a correlation in South Africa to this observation: http://www.cyclehelmets.org/1261.html Just to make my position clear: I'm against helmet laws, and the promotion of helmet use, because it reduces the number of people cycling, and this in tern makes the roads more dangerous. (This is back up by scientific evidence.) I'm not say you should not wear a helmet.
  16. A picture says a thousand words: (please excuse that it's a road bike.) Most chains are designed with a pitch of 1/2", so 12 link pairs should have a length of 12". Measure how long 12 link pairs is on your chain. Subtract 12". This is the wear. (This chain is has done over 8000km road use. It's starting to encroach on 1/16" wear. Almost time to to be replaced.)
  17. Argumentum ad hominem...
  18. Out of curiosity, question to those who have kindly offered their anecdotal evidence. How many of you were cycling as a sport (either training, or racing) and how many of your were commuting?
  19. Chain life is mostly to do with how clean and well lube it is kept. Very little to do with power output. Not sure exactly how much wear 1% is on your measuring tool. If possible, please could you measure your chain using this method: sheldonbrown.com/chains.html#wear
  20. You can send him a message via youtube: www.youtube.com/inbox?to_user_ext_ids=cZ9PZ4liStfOfWYefAuBPw&action_compose=1
  21. Side note https://community.bikehub.co.za/topic/131589-strava-heatmap/, Beat you to it
  22. Not very impressed by the article. His statement sounds mostly based on anecdotal evidence, with slim sliver of real scientific data. This is then countered by more anecdotal evidence. And then, as per usual, lots of replies on the hub here of more anecdotal evidence. For those interested in real science: http://www.cyclehelmets.org/1157.html
  23. I trust you noticed the date of the article?
  24. I trust you noticed the date of the article?
  25. The only time the sides of the chain should touch the sides of the sprockets is the 1 second during a gear change. (If this is not the case, one should get ones derailleurs adjusted.) Then there is movement between the chain and the face of the teeth when the chain comes together with, and comes apart from the sprockets. You want this movement to happen between the inside of the roller and the bushing. You don't want the outside of roller to slip on the teeth of the sprockets. Hence, you want as little lubrication on the outside of the chain, as it tends to get a lot of dirt sticking to it, and lets the rollers slip on the teeth. There are 3 place where there needs to be lube on a chain: 1) between the roller and the bushings, 2) between the bushings and the pin, 3) between the inner links and the outer links (less important)
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