VKB-SIM

What spring (soft, standard, medium, strong, extra strong) comes default with the t.rudder mk.iv? Please and thanks.

ooops, I overlooked this post...
As I understand, you lost the stock spring, and are looking for something to replace it.
First thing to do, ALWAYS, is to contact the local dealer.
Only contact us if you had no joy from the dealer, or if you are in location not covered by dealership network.
We will help anyway, but please follow the procedure.

He is asking if there is more than one type of spring for the MK4 pedals. The answer is no. But he can order different one from some local ironmongery or shop which hold all kind of springs. Best thing is to bring the original spring and ask the employees there if they have or can make same size but with more or less stiffness (as per his like).