I also learned recently that most stainless steel brake rotors are made of high carbon stainless of the 420-430 grade, which is much better at thermal conductivity and friction than the shinier 3xx series stainless steels. Thus the desparity in performance compared to iron is not as much as I had thought, and may be comparable to regular cold rolled high carbon steel.
Providing precise fit for reliable smooth engagement, these stainless steel brake rotors for production or custom Harley-Davidson motorcycles accommodate OE brake dimensions. Use them as direct upgrades with OE calipers or paired with Wilwood GP Calipers (available for most 1984-2008 Harley-Davidson V-Twin models that have 11.5" discs and a 5 x 3.25" mounting pattern). Choose from three rotor finishes: satin, black, or polished. Symmetrical front rotors can be utilized with single or dual front calipers.