Steel or synthetic rope
There is no better and worse here. There are two different sets of drawbacks, and the choice depends on how often and in what conditions you use the winch.
What the manufacturer says
Warn Industries puts it plainly: synthetic is a good product if you winch frequently and are concerned about weight. It is light, easy to handle, develops no sharp burrs and stores less energy under load. In exchange it is more prone to abrasion and needs regular inspection for damage from UV, chemicals and ordinary use.
Steel rope is extremely durable and suits both vehicle recovery and utility work — moving logs and rocks. UV does not affect it, so it can be the better choice if you use the winch infrequently. It is heavier, can rust and develops sharp burrs. That is why the manufacturer always recommends heavy leather gloves.
The manufacturer also addresses a common belief head-on: “some people automatically think synthetic rope is safer than steel rope”. Steel does store more energy, but it is less prone to abrasion and fraying. Its conclusion is that safety is decided by technique, not by rope material.
The trap when switching to synthetic
This is the one that costs people a new rope. When changing from steel to synthetic you must replace the roller fairlead with a new aluminium hawse. Not “should” — must.
The reason is mechanical. Roller fairleads are designed for steel. Pulling at a sharp angle, the rope can touch the fairlead frame; steel does not care, synthetic abrades. On top of that, steel rope leaves small nicks and burrs on the fairlead that act like a blade — which is why the hawse has to be new, not merely aluminium.
WARN hawse fairleads have smooth, large-radius openings precisely so they do not wear the strand.
Stretching a new rope
The manufacturer calls this a critical step in setting up a winch, and it applies to both rope types. A new rope arrives on the drum wound loosely, with no tension.
If the first real pull happens on a loosely wound rope, the upper wraps bury themselves between the lower ones and crush them. The rope starts failing from the inside, and it only becomes visible once the damage is done. Stretching means spooling the rope out and winding it back under moderate load, wrap beside wrap.
When to replace
Synthetic: abrasion that has taken about a quarter of the strand volume; two adjacent cut strands; any melting. A slight sheen from compression is not permanent — it disappears once the rope is flexed.
Steel: crushing, kinks, heavy corrosion, broken wires.
The manufacturer leaves no margin here: a rope compromised in any way must be replaced before use.
Steel or synthetic rope
There is no better and worse here. There are two different sets of drawbacks, and the choice depends on how often and in what conditions you use the winch.