A 32 front 42 rear is the same as a 22 front and ??? rear?

32 …. I think 😕
could be 29 – too early!

28.9

(42/32) * 22 = ???

28.87. Not really gearing experts, just a bit of maths

If you need to ask, you can’t push it…

when you have gear comparison questions and can’t do maths, go here

http://gear-calculator.com/

it’s very easy to use, and very good.

Answers above are from maths experts, not gearing experts. An engineer will point out that you can’t have 0.9 of a gear tooth. 😀

Give a man a fish and he’ll eat for a day. Show a man how to fish and he’ll eat for a lifetime.

I did look it up and one was 17 inches and one 19 inches.
What that means in the real world I don’t know but I can stick my bike in a certain ratio (!) and know how that feels.

use the tool I linked above, it has visual comparison of where things are on scale, you can move cogs around and line stuff up to see what’s equivalent

Depends what you mean by same………

I did look it up and one was 17 inches and one 19 inches.
What that means in the real world I don’t know

It means the distance travelled for one revolution of the pedal

not quite…

(it’s the diameter of a directly-driven wheel, like a penny-farthing, or unicycle)

It means the distance travelled for one revolution of the pedal

thats metres development

yep for simplicity when your swapping on one bike
Divide the Front by the Rear
32/42 = 22/29ish