Crankset options for Gravel bike

rsmrnd61
rsmrnd61 Posts: 11
edited January 2021 in Road buying advice
Hi All,

Looking to purchase my first gravel bike. Mostly it will be used on the road (sometimes gravel)
They have a different crankset option and I'm looking for either 48/32 - 11-34 or 46/30 -11-34. The question is what is the difference? Which one will be better for the road? The bike with 48/32 i suppose should be faster, but will i notice the difference in speed on the road?
I'm new to all this aspects
Cheers