What have you found to be "cycling myths"?
08-24-14, 08:06 AM
#26
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08-24-14, 08:14 AM
#27
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08-24-14, 09:07 AM
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08-24-14, 09:09 AM
#31
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08-24-14, 09:11 AM
#32
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08-24-14, 09:30 AM
#33
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You mean if I post data I might be proven wrong. ..................
IMO other things come into play in descending while not pedaling, mainly hubs, tires and tubes, I often roll right past other riders on group rides who are of have similar weight.
IMO other things come into play in descending while not pedaling, mainly hubs, tires and tubes, I often roll right past other riders on group rides who are of have similar weight.
08-24-14, 09:34 AM
#34
Farmer tan
Myth: anyone here actually remembers enough high school physics to understand mass, acceleration, wind resistance, and terminal velocity.
08-24-14, 09:40 AM
#35
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Shouldn't need to, since anyone who claims to be a road rider should know the big kids get downhill fastest. If you don't know that, it's off to Rec & Family with you...
08-24-14, 09:44 AM
#36
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Based on physics a heavier rider will descend faster, but it's a moot point since the advantage gained on the descent is a fraction of the disadvantage that heavier rider has on the climb up the hill. This is why you don't see Marcel Kittel winning mountain stages on the descent. Not to mention there's more a lighter rider can do on a descent to make them faster than a heavier rider, eg. pedaling harder, getting more aero, or having a better wheelset.
08-24-14, 09:48 AM
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You missed the main factor- position on the bike.
08-24-14, 10:03 AM
#38
Farmer tan
08-24-14, 10:09 AM
#40
Farmer tan
Since I couldn't remember the formula, I checked wikipedia:
where
It's pretty clear that if you hold other things constant, increasing m will increase Vt.
where
is terminal velocity,
is mass,
is acceleration due to gravity (which is a constant),
is drag coefficient (which is relatively the same between riders in the same position),
is the density of air (which is a constant),
is projected area of the object (rider and bike, which is relatively the same between riders in the same position).
It's pretty clear that if you hold other things constant, increasing m will increase Vt.
08-24-14, 10:09 AM
#41
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Based on physics a heavier rider will descend faster, but it's a moot point since the advantage gained on the descent is a fraction of the disadvantage that heavier rider has on the climb up the hill. This is why you don't see Marcel Kittel winning mountain stages on the descent. Not to mention there's more a lighter rider can do on a descent to make them faster than a heavier rider, eg. pedaling harder, getting more aero, or having a better wheelset.
08-24-14, 10:13 AM
#42
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I feel like this advice has matured and changed to be that KOPS is the best starting point from which to fine tune saddle position. After all, if not KOPS as a starting point, then what? That is hard to argue with. You don't hear too many folks saying KOPS is IT anymore.
A pound off the wheels is worth two off the bike.
08-24-14, 10:17 AM
#44
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Another myth: A member asking about road bikes is telling the truth when he says he says he rides his MTB 200 miles a week on the road and averages 20mph in a headwind. Just one of our mileage/average mph truth stretching examples that we see multiple times a day.
08-24-14, 10:19 AM
#45
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08-24-14, 10:21 AM
#46
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08-24-14, 10:26 AM
#48
Farmer tan
08-24-14, 10:30 AM
#50
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You're not a pro cyclist, are you? It's certainly not a moot point because understand where your advantages and disadvantages are guides your ride strategy, which is exactly why Kittel, at 190 or whatever, is still a top pro while lots of lightweight bastards aren't. Indurain wasn't light at 176, but won 5 consecutive TdFs. Pantani was super light, but won the Tour, too. If you narrowly define the point as winning mountain stages in the TdF, well, I think that misses the point. If the point is being a top cyclist, play to your advantages.