That is amazing.
tl;dw: tight drafting gives 50% aero benefit. Drafting at 3 bike lengths gives 20%. Having someone draft you, gives you 4% benefit!!!
So, when someone tight drafts you on the embankment you should thank them.
I like to thank them up close and personally. And repeatedly.
@NotThamesWater started
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That is amazing.
tl;dw: tight drafting gives 50% aero benefit. Drafting at 3 bike lengths gives 20%. Having someone draft you, gives you 4% benefit!!!
So, when someone tight drafts you on the embankment you should thank them.