Drafting in Time Trials

What distance would a motor bike need to be in front of a cyclist to make NO difference?

Bearing in mind the speeds they were going at yesterday in the vuelta TT, and the headwind

(OK, I couldn't help noticing that at certain points Valverde had "outriders" and Roche didn't. The commentators didn't remark on it, so maybe it has no effect?)
 
Jun 18, 2009
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No intention to change the initial idea of this thread, but I sometimes ask myself if it would help projecting a hologram rider in front of a rider, through glasses or something. Like a rabbit. We saw a lot of very weak tt-ers who, after being caught by their 2/3 minutes guy after 30 kms, manage to stay with them for 20 kms.
 
Aug 29, 2012
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McLovin said:
No intention to change the initial idea of this thread, but I sometimes ask myself if it would help projecting a hologram rider in front of a rider, through glasses or something. Like a rabbit. We saw a lot of very weak tt-ers who, after being caught by their 2/3 minutes guy after 30 kms, manage to stay with them for 20 kms.
Big psychological effect - you can simply push harder when someone slightly faster than yourself is in front of you. Not sure a hologram would work though.
 
Nov 26, 2012
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isn't there a rule somewhere regarding distance between the bike and the rider?
 
murali said:
isn't there a rule somewhere regarding distance between the bike and the rider?
there are rules for the gap between rider and rider. I'm sure the camera bikes are told to keep a certain distance but it would be pretty hard to enforce.

I wonder if and at what distance the motorbike being there is a disadvantage by causing air turbulence?
 
Nov 26, 2012
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i have heard of complaints in this forum that a certain rider was aided by bike rider in TTs, esp the longer ones. I have always wondered whether such a thing actually exists.

the only place where i can think of a cyclist catching a bike rider is in descents.
 
Mar 13, 2009
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From data from Ironman competitiors. 7m behind another cyclists yields a saving of 15-30 watts, at about 40kph. So behind a motorbike at higher speeds...I don't know, but i'm certain motorbikes influence races at times.
 

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