FSA Pro Track Chainrings are CNC Machined AL7075/T6 with laser-etched logos. Features-Requires 1/2"x1/8" chain Item Specifications-Color:Black-Material:Aluminum-Chainring BCD:144-Defined Color:Black-Ring Position/TYPE:Single-Drivetrain Speeds:Single Speed 1/2" x 1/8"-Tooth Count:52
Requires 1"x1" chain
Material: Aluminum
Chainring BCD: 144
Defined Color: Black
Ring Position/TYPE: Single