Virtually all racing cars of today have six or seven (forward) gears. F1 cars used to have the latter number of gears for a quite a while, until the hybrid era where they started having eight
But why would they need so many? Wouldn’t seven gears suffice?
One extra point is that starting in the hybrid era teams have to fix their gear ratios for the season rather than being able to change them for each track like they did before. Having more gears makes it easier to tune the gearbox for the whole season.
Latest Answers