Promax 4-Bolt Chainring - 45t, 104 BCD, Black EA Chainrings

S01-P204-BCD104-4502 Promax 4-Bolt Chainring - 45t, 104 BCD, Black Chainrings EA Black Color Black Ring Position/Type Single Tooth Count 45 Round or Oval Round Drivetrain Speeds Single Speed 3/32" Chainring BCD 104 Material Aluminum Defined Color Black