Full Speed Ahead Pro Track 50t x144mm Black Chainring 1/2"x1/8" MFPN=PW001 }DT Swiss 135mm QR End

}DT Swiss 135mm QR End Cap Kit for Straight Pull 11-Speed Road Disc Hubs

Surly rings paired with 9 speed chains will have a tight fit

This tape is thickly padded for the pounding you'd expect from CX but it's also a favorite of roadies

Hub/Disc Compatibility 6-Bolt Rotor Size (mm) 180 Rotor Type One Piece Weight 118

Full Speed Ahead Pro Track 50t x144mm Black Chainring 1/2"x1/8" MFPN=PW001 }DT Swiss 135mm QR EndFull 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 Tooth Count 50 Ring Position Type Single Drivetrain Speeds Single Speed 1 2" x 1 8" Chainring BCD 144 Color Black Defined Color Black Material Aluminum