EVOC Urban Pack 25 Backpack 25L Violet/Black ModelNumber=K1431 but fits numerous other makes Valve-Presta RVC (Smooth) Length:110mm Boost Low weight and compact J640176

EVOC Urban Pack 25 Backpack 25L Violet Black ModelNumber=K1431 but fits numerous other makes Valve Presta RVC (Smooth) Length:110mm Boost Low weight and compact J640176 but fits numerous other makes and models as well Tooth Count 38 Round or Oval Round Drivetrain Speeds 12 Drivetrain Speeds 11 Drivetrain Speeds 10 Direct Mount Type Direct Mount SRAM Defined Color Black Ring Position Type Single Ring Position Type Chain Retaining Single Ring Offset 6 Chainring BCD Sram Direct Mount Color Black Material Aluminum Material Aluminum Chainline Hub Compatibility 135 142 MTB Hubs Chainline Hub Compatibility 150 157 DH Hubs Chainline Hub Compatibility 170 177 Hubs