2 12.4's are just a little more than the cost of 1 11.2. However 11.2's are what was originally on. What would you go with? Tractor is just a mower, wagon puller and ride giver.
Read where 12.4's will be harder to steer.
Not sure why it would steer any harder with the 12.4's but can show you a picture of what it's look like with 12.4's on it. Got a heck of a deal on these new take-off Michelin radials on a Facebook Farmall page for $300 ea. and dealer threw in the tubes with them. Cost me $125 to have them shipped from Virginia, but still a deal. Those tires list for $1300+ each.