Well I just found two mods that add them. "Bike", should have saw that coming. But they seem to work just fine. Either way, I'm probably the only guy who missed them so I'm happy I have them back.
I don't know if someone mentioned this in the past 150 pages but I just noticed that there are no bicycles in the CUP vehicles . I remember the MTB and the civilian bicycles in Arma 2. I don't know if the CUP team forgot about them or purposely left them out because maybe Arma 3 could not handle them. Great mods though! Thanks!