SRAM Derailleur Pulleys for 2003-07 X0 short cage X9 and X7 ModelNumber=G0427 the X-10 utilizes Rossi’s Dual

the X-10 utilizes Rossi’s Dual Core injection technology to get optimal performance from less costly materials (plastics instead of carbon)

The strategically-placed elastic panels and articulated sleeve provide a full range of motion and ensure maximal ventilation

outer plate chamfering for minimized cassette tooth interface

The Endurance is a well-balanced blend of performance

SRAM Derailleur Pulleys for 2003-07 X0 short cage X9 and X7 ModelNumber=G0427 the X-10 utilizes Rossi’s DualSRAM Derailleur Pulleys for 2003 07 X0 short cage X9 and X7. Original equipment rear derailleur pulleys for SRAM rear derailleurs. TECH SPECS Fits Brand SRAM Drivetrain Speeds 10