RaceFace Narrow Wide Chainring: Direct Mount 3-Bolt Compatible 28t Black CheckoutSpec= 57.5-65mm/50mm Trek }Zipp Service Course SL Stem

}Zipp Service Course SL Stem Face Plate Titanium Bolt Kit Beyond Black

Spring Weight 550

0mm 272mm J-bend Black Box of 100

Not compatible with the SRAM 8-bolt interface

5" 15 x 110mm 6-Bolt Black

RaceFace Narrow Wide Chainring: Direct Mount 3-Bolt Compatible 28t Black CheckoutSpec= 57.5-65mm/50mm Trek }Zipp Service Course SL StemRaceFace Narrow Wide Chainring: Direct Mount 3 Bolt Compatible 28t Black. Narrow Wide Direct Mount 3 Bolt Chainring7075 T6 aluminum aerospace grade strength Stiff 4mm plate thickness to transfer loads without flexing TECH SPECS Ring Position Type Chain Retaining Single Ring Tooth Count 28 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 3 Chainline Hub Compatibility 135 142 MTB Hubs