Full Speed Ahead Pro Track 50t x144mm Black Chainring 1/2"x1/8" MFPN=PW001 Surly rings paired with 9

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

Chainring BCD 94 Max Tooth (teeth) 30 Color Black Material Aluminum Mount Type Chainring Tooth Count 30 Defined Color Black

}Wheels Manufacturing T47 Inboard Bottom Bracket with Angular Contact Bearings for 30mm Spindles Fits B

Full Speed Ahead Pro Track 50t x144mm Black Chainring 1/2"x1/8" MFPN=PW001 Surly rings paired with 9Full 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