Ladder Tractor chains are the standard ladder bars going across the tire, also known as road chains. Equipt with a round twisted link. Recommended for road and general farm applications. We sell the Ladder chains in 4 Link and 2 Link with and without V-BAR: Chains spacing is defined as the number of side chain links skipped between cross chains. A 4 link tire chain, cross chains occur every 4 side chain link. 2 link provides a more consistent ride by having more chain on the face of the tire. 2 link helping to reduce the vibration (bumpy ride) from being on chain - off chain. 2 link is always recommended for steering tires, since it allows more steering control.