If there's a torque issue, I haven't noticed it. The larger wheel/tire width/diameter certainly adds a lot of rear ballast weight if you have them filled, and that ballast won't affect your FEL or 3PH capacity at all. If I was having a tractor drag race, then maybe I'd worry about the slight difference made by the larger tires and heavier ballast, but considering ground clearance and weight was my target, they're perfect for me. I'm not sure that more ground torque is going to help if I already have enough to stall the engine or spin all four tires on flat dry soil when pulling something stubborn. You'll just spin your smaller tires sooner because you don't have the mass for the traction despite having a slightly higher torque applied at the ground. What's the point of having another 10 or 20 ft-lbs if the tractor doesn't have the mass to use it? The larger, heavier, wider tire is going to work a little better on softer surfaces simply because it has more tread contact with that surface. if you're on a hard flat surface, it isn't likely that a lot of torque is going to be needed because you typically aren't pulling anything hard to move on such a surface. I'm pretty sure I'll run out of engine RPM (governor) long before I run out of the additional horsepower needed if I'm driving at top speed. I don't operate on the road (requires a tag and STRICTLY on-road diesel in Alabama if you do). I'm not sure I'd want to be at top speed on a little tractor anyway. It ain't a Ferrari, and running that fast with lifted loads (the county/state frowns on dragging attachments down the road) is probably not the wisest choice of operation. Stability? They're big, they're fat, and they're HEAVY. Despite raising the COG sligthly, the additional weight/width seems to compensate for that increase quite nicely. At first, I was a little worried about the height, but have found it to be less of a factor than I feared because of the weight. As far as turning radius is concerned, I'm quite pleased with what I have. I have too many obstacles to worry about it being a problem anyway, and worse come to worst, there's always a cutting brake maneuver. That's why I have two brake pedals, isn't it? My preference isn't for everyone, but I can't see why someone that doesn't have the big tires would call them a disadvantage. I don't think I'll run out of enough torque to climb any incline I'd dare put the tractor on, and since I don't get in any tractor races, I'm not sure the increased speed is gonna benefit me either. It has three ranges, after all, and the Low Range will make it plenty strong on any terrain. I might be able to outrun you in Low range, but is that an advantage? Not in my opinion, unless Low Range Drag Racing is the objective. That isn't what I bought a tractor for.
The ONE possible disadvantage that I've found so far is that the 3PH links seem to be a bit short, and lift my box blade going over even a slight crown (front to rear) and will actually aggravate that crown and wants to create small hills instead of levelling. Pushing backward a couple times, or skimming with the FEL usually resolves that problem, though. I do like the ground clearance because I have MANY stumps and holes on my property (which I intend to remedy) as well as some pretty rough terrain that I don't want to get hung on as I progress with my landscaping projects.
The large R14's were my decision at no extra cost because I originally wanted to put the BH77 on it. I wanted all the help I can get to avoid dragging it when loading/unloading from my trailer. If you don't want them or don't need the features they offer, then they're not for you, but I don't think that makes them any kind of disadvantage. Lack of need is not a disadvantage, and I can't imagine you not being able to pull anything with a LX2610 in normal applications for a compact tractor. If you can't pull whatever you're trying to move because of tire size, you probably needed a bigger tractor, especially if you're going to be doing that on a regular basis.
