What is the ideal gearing for a gravel bike?Updated a year ago

Gravel bikes need the technical agility and pace to go from a 4mph steep technical climb to a 35mph+ flowing descent.

A 40 tooth chainring coupled with a 9-42 cassette provides approx 1:1 and a 500% ratio. An electric gravel bike needs the same gear ratio and the rider benefits from power assistance at all speeds up to 15.5mph meaning you can explore more, go further and go faster than with an unpowered bike.