Serfas DDM-CT Dual Density Comfort Men's Saddle Steel Black giant rear cassettes and derailleurs to

rear cassettes and derailleurs to clean your entire drivetrain within seconds

Outer Diameter Fits 60 - 74mm

Compatible with ADVENT shifters only

Arm Length: 175

Left shifter works for triple

Serfas DDM-CT Dual Density Comfort Men's Saddle Steel Black giant rear cassettes and derailleurs toThe Serfas Dual Density line of saddles is constructed using their patented I. C. S. (Infinite Comfort System) technology. Made up of a soft flexible rubber base followed by two layers of soft and firm closed cell foam, and a final top layer of friction reducing Reactive Gel covered in moisture wicking four way stretch Silk Tech Lycra. Features Serfas Silk Tech four way stretch moisture wicking Lycra cover, Dual Density Progressive Foam Technology,