I see what Doge is digging for..........which is awesome. Kudos.
Raw finish speed? Using only your teammates and not silly salt flat car drafting.........a downhill sprint finish in the World Tour. Though, I'd imagine that's super super rare they'd do that versus giving a technical setup to the sprint that slows them down.
In that case, routinely the flying 200m on track.
If we're going after something longer than blinking and it's over.............individual and team pursuit. I'd say Kilo, but it's not an official Oly event anymore......I think.
Outdoor TT is super fast but has environmental factors to consider that track does not*.
*assuming indoors