SRAM 2010 and later X9 and X7 9- and 10 speed Pulley Kit Mount-4x64mm Fibreglass/wood core with integrated air

Fibreglass/wood core with integrated air channels to save up to 250 g in weight compared to pure wood cores

Integrated 4-arm

99mm Crank Arm Length 160mm Interface DUB Crankset Material Aluminum Pedals Thread 9/16 Primary Color Black Speed 12 Drivetrain Spacing Road

which is important as changeable conditions are often encountered over the course of marathon races

SRAM 2010 and later X9 and X7 9- and 10 speed Pulley Kit Mount-4x64mm Fibreglass/wood core with integrated airSRAM 2010 and later X9 and X7 9 and 10 speed Pulley Kit. Original equipment rear derailleur pulleys for SRAM rear derailleurs. TECH SPECS Fits Brand SRAM Drivetrain Speeds 9 Drivetrain Speeds 10