If you're looking for another tweak to improve performance on your high-end road steed, look to the Jagwire Pro Polished Slick Stainless Derailleur Cable. The slick stainless steel cables undergo a polishing process that removes imperfection and creates a smoother surface that actually boasts lower friction than PTFE-coated cables. And with no coating, this cable is also more durable and compatible with all performance housings and lubricants.