SRAM Rear Derailleur Hanger Bolt Assembly Fits 2006-2009 X9 X7 2006-2010 X0 ModelNumber=31519 Ergonomic design makes pedal removal

Ergonomic design makes pedal removal easier

Tooth Count 42 Ring Position/Type Chain Retaining Single Ring Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Chainring BCD 110 Shimano Asymmetric Color Black Defined Color Black Material Aluminum

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Through the spherical contact surface DT Pro Head nipples align automatically with the angle of the spoke which leads to a homogeneous power transmission

}SRAM X-Sync Chainring 42 Teeth 110mm BCD Polished Grey/Matte Black

SRAM Rear Derailleur Hanger Bolt Assembly Fits 2006-2009 X9 X7 2006-2010 X0 ModelNumber=31519 Ergonomic design makes pedal removalSRAM Rear Derailleur Hanger Bolt Assembly Fits 2006 2009 X9 and X7 2006 2010 X0. Upper Bolt and Spring kits for SRAM rear derailleur maintenance and repairs.