The center axle is made of highly rigid chromoly, and the fixing bolts, bolt caps, and cone nuts are updated to rust-resistant stainless steel.
Among the many lineups, the one that only makes such a standard Surly is a truck hub with a disc brake pedestal that supports the 135mm end.
(Actually, I also make PAUL COMPONENT)
Even if you're not a truck crosser, many people have come to know the joy of running on rough roads in fixed gear.
|Brake||6-bolt Disc Brake|