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To anyone who rides... a must read(6 posts)

To anyone who rides... a must readblakester
Dec 1, 2003 9:05 PM
http://home.hia.no/~stephens/aero.htm

let the debating begin...
ok, I would debate..desmo
Dec 1, 2003 10:29 PM
that it is not even close to a "must read" for "anyone", but would be more of a "who gives a rat's azz" to most who ride.
Yep. This is something only a triathlete could love. nmdzrider
Dec 2, 2003 7:51 AM
Actually anyone interested in riding a bike...Dwayne Barry
Dec 2, 2003 9:04 AM
fast should be interested in that article. Of course, most people here are recreational riders.

But I would like to know what we should be debating?
re: aerodynamics a rat's ass?Fredrico
Dec 2, 2003 9:29 AM
Wait a minute, people! The man is merely touching on the subject of positioning on a bike and the consequences for speed.

Making the back flat and and nearly horizontal to the ground reduces its effect as a wind spoiler. Next time you're descending, dear readers, you can experiment with tucks, flattening the back, bring the elbows in close to the body, and witness the difference in wind resistance.

The writer cannot adequately figure out how the saddle should be positioned in the aerodynamic tuck. If one looks at pictures of pro riders, one will notice that most have their saddles level to the ground, and that they can lower their torsos by holding the hips so that the sit bones still rest at the back of the saddle, while the backbone bends at the lower back, the shoulders are relaxed on a flat back, and the arms are bent at the elbows while the hands rest on the brake hoods without a pronounced bend in the wrists. Positioned this way, weight is still mostly on the sit bones, and the hands are not locked on the hoods. Stress in the neck muscles is alleviated by sitting up from time to time.

Knowing how to get aero and practicing it occassionally, is an efficient way of going fast. Roadies all want to go fast, right?

The winter is a good time for re-assessing positioning and working out problems and new techniques, such as going as fast as you can in an aerodynamic tuck.
re: ...a must read I agreekissthedemon
Dec 3, 2003 8:58 AM
I agree it is a must read. Even for casual recreational riders. We all know that drag from the air is the number one thing resisting our forward motion. Even the most disinterested casual recreational rider should find this information interesting and useful.

It is critical information to anyone interested in time trialing as well (moreso than triathletes).

But having said that, I think there is nothing new in this article except maybe some modeling evidence that supports what we all already knew to be the case.