"AFL-001: Finally a fairlead designed specifically for winches running synthetic winch rope. This fairlead is machined from billet aluminum and maintains a smooth machined surface. Unlike traditional steel fairleads, this fairlead will not fray or tangle the winch rope. In addition, this aluminum fairlead weighs only a fraction of the steel hawse and roller fairleads. Each aluminum fairlead comes with mounting hardware as shown."
From Spidertrax's website..

I spoke with Masterpull when I ordered my synthetic winch line and asked numerous questions regarding all of this before I made my purchase.
I ended up with 125'X 5/16" Cable (14,500lb), instead of the 100'X3/8" steel cable that came with my Milemarker winch (12,500lb strength).
My Milemarker steel cable weighed easily 25-30lbs. And the Masterpull cable with the hook weighs 8lbs!!! Im glad I can run a winch and give the Torsion bars a little less weight to carry.
And I ordered the Spidertrax Alum. hawse fairlead.
They said that synthetic rope type cable could get pinched in a roller fairlead and it could lead to fraying or snapping and it wouldnt be covered by any sort of warranty from them. So I decided to stick with what they recommended, in case I had ay problems with the cable.
My cable spools and unspools beautifully without a roller fairlead. The aluminum is a machined piece with perfect smooth edges, not to mention that it weighs nothing.

alum. fairlead

winch lines