Full Speed Ahead Pro Track 50t x144mm Black Chainring 1/2"x1/8" ModelNumber=30390 Do not use with rim

Do not use with rim brakes

5mm inner width) features a tubeless friendly bead shelf

Rings 25Number of Chainrings Chain Retaining SingleDrivetrain Speeds 10Drivetrain Speeds 11Drivetrain Speeds 12Chainring BCD Direct Mount SRAM 3-BoltChainline/Hub Compatibility 135/142 MTB HubsColor BlackCrank Length (mm) 160Crank Intended Use MountainWeight 758BB Included NoPedal Spindle 9/16"Defined Color Black

Knurled handle

Full Speed Ahead Pro Track 50t x144mm Black Chainring 1/2"x1/8" ModelNumber=30390 Do not use with rimFull Speed Ahead Pro Track 50t x144mm Black Chainring 1 2"x1 8". FSA Pro Track Chainrings are CNC Machined AL7075 T6 with laser etched logos. Requires 1 2"x1 8" chain TECH SPECS Color Black Ring Position Type Single Tooth Count 50 Drivetrain Speeds Single Speed 1 2" x 1 8" Chainring BCD 144 Material Aluminum Defined Color Black