Originally Posted by
Melvang
And if memory is correct, the second biggest source of drag is grease shear.
yep, grease and seals
For track bikes where they're used indoor, they don't even use seals and only a very light oil for lubricant.
For road bikes, and i use bearings with non-contact seals and a very light llubicant. But this means I can't get to use my bikes in wet and dirty condition, which I don't.