There are lawn tractors and then there is the kind of lawn tractor that only John Deere can build. A tractor born of durability, enhanced with comfort and ease of use.To understand what separates a 100 Series Tractor from others, you'll have to start with the foundation it's built on: a solid, one-piece, 12-gauge frame. We robotically weld it to give it maximum strength and reliability. The durable features don't stop there: heavy-duty crankshafts, a cast-iron front axle, and a high capacity filtering system are proof that a lot more goes into a 100 Series tractor than meets the eye.