What is the difference in size between the r1 and the f4i front axle diameter? I did a front axle swap on my f4i but i am now looking to use the my f4i wheels and was wondering if the r1 front axle would work or not?

can anyone give me a idea

 

i beleive the f4i is 20mm and the r1 is 22 if thats the case can someone point me in the right direction to find a set of 22mm wheel bearings to go into my wheel to fix this