Gear ratio help

hey dudes, I’m building up a single speed for my mrs, who doesn’t ride much at all at the moment. Anyone got any advice on gear ratio?

I’ve got a spare 52 chainring sitting around, so thinking around 21 cog on the back – delivering about 65 gear inches… That’ll be easy enough for her to get around inner city Melb yeah?

Go lower. And use the search function.

i’d go lower. 66-70 imo.
i’ve got 45/17 (~71 inches) on both my fixed and SS bikes
if you’re gonna use that chainring i’d go for a 20 or 21t cog, especially if she doesn’t ride that much.

thanks dude - yeah I realised it was way too hard as soon as i posted, so I edited my original post - and thought about 65 best too. Cheers.

put on whatever you have lying around and if she complains, change it

put on whatever you have lying around and if she complains get a new mrs