Specialized power arc expert saddle black 155mm Spindle Interface Type Shimano Octalink V1 Color Black Ring Position Type Inner Color Black Ring Position Type Inner Tooth Count 36 Drivetrain Speeds 11 Chainring BCD 110 Shimano Asymmetric Material Aluminum Defined Color Black keyword search CR8200 keyword search Y1PH36020 keyword search CR6395 keyword search Y1WV36010 The tool free Maxle Ultimate Front brings exceptional stiffness and durability to your ride in a high clamping force easiest to use internal cam thru axle system list style position:outside Patented Body Geometry design is lab tested for both men and women to assure blood flow to sensitive arteries