You have to download and put the .json rev 3 file into the folder manually. Then you can go into the game, select that file and then assign your controls and adjust to your taste.
You can find the files here:
https://community.granitedevices.com/t/rfactor-2-and-simucube-2/2975/102?u=esxpaul
Thanks EsxPaul
I have downloaded it and paste into the Control folder.
Loaded and accepted in rfactor2 but unfortunately nothing really seems work.
Just like it is not connected at all. Nothing… no sign of live …
That’s strange.
So the game cannot recognise your pedals or SC2 when you try to assign them in game.
Are they connected directly to the pc or are you using a usb hub?
directly …
yes it is exactly like how you describe, used to work with my t300 and now not sure why…
nothing works basically…
I can see they been founded but no a sign that there are actually connected in the interface right after you detect/load them
How about doing a Steam file integrity check? Could be worth a try.
Edit: Another crazy long shot but @Bazz had a somewhat similar issue with assigning controls in F1 2019 and managed to fix it by switching his hardware back and fourth between usb ports. You can read what he did here:
https://community.granitedevices.com/t/f1-2019-help-needed/2952/15?u=esxpaul
Do you use irffb? If it’s running in the background it will stop other games from working.
i assume you are saying iracing ffb?
if so how to stop it?
do you mean i haven’t loaded the profile correctly from True drive?
Hi Paul, how to do the steam tested you mentioned ?
Hi Maxx
My explanation would be rubbish so I’ll link you to the official instructions. Only takes a few minutes to do 
https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335
Thank you Paul…
I need help, there is no any response in Rfactor2 but it used to be fine with other wheel base…
I did downloaded the simucube2 pro json file
Pasted into the C:\Program Files (x86)\Steam\steamapps\common\rFactor 2\UserData\Controller
loaded in Rfactor2
deteted the simucube 2 pro file
BUT there is no ANY response in Rfactor2, feels like not connected at all. I know the wheel base is on , the torque is constantly there, but the wheel just has no connection to the rfactor2.
WHAT SHOULD I DO???
I just tried rfactor2 for the first time ever, I copied the JSON file and I can select it rfactor2 but steering doesn’t register.
By the my pedals which work in iracing and AC, ACC also did not reguster in rfactor2.
@Cyberbug after you have selected the simucube profile IE sport pro or ultimate , Recalibrate rotation left and right you may have to rotate the wheel more than 540 in either direction , then do the buttons and any thing else you want to map .then everything should work ok
hi there,
complete noob to rfactor, I have just received my Simucube 2 pro and wanted to give it a go with the demo, I’m still waiting for the pedals to come but I want to try to map the brake and accelerator to the paddles just to try.
unfortunately the button work but not the steering, I have tried modifying the controller.json etc but nothing happens 
download the simucube2 profiles from here https://www.dropbox.com/s/vv68vz8g7gq7lyk/Simucube2_rfactor2_json_files_rev3.zip?dl=0 and copy paste the pro profile inside the UserData\Controllers folder of your rfactor2 installation (to be sure you put it in the correct folder , this should contain profiles from almost all known wheels of the market) . Then load the profile inside the game and map your steering and everything else you need.
hi Loukas,
thanks for that, I’ve already done this but doesn’t seem to be working. I can map the buttons but the steering doesn’t do anything - I suppose I should go green or blue when I turn in factor calibration (Bottom left)
Can you upload your current controller.json somewhere to check ?
Yes will do
To be honest I have the same’ problem with assetto the wheels aren’t moving in game but on the control menu the Simucube pro appears and I can see the sensitivity
Really annoying