absoluteBLACK Premium Oval 110 BCD Inner Chainring for FSA ABS - 39t, 110 FSA ABS BCD, 4-Bolt, For 53/39 Combination, Black

absoluteBLACK Premium Oval 110 BCD Chainrings utilize absoluteBLACK's top-tier design features to greatly improve traction and speed. They are designed for 4-bolt or 5-bolt FSA cranks such as Gossamer, SL-K, and K-Force with asymmetric bolt spacing. 4 and 5-bolt cranks are identical with the exception of the one hidden bolt behind the crank arm in 5-bolt design, which is not needed. Optimized with smooth shifting in mind, premium chainrings have a unique shift ramp and recess design. Chainrings are crafted from CNC machined 7075 aluminum, and feature an anodized finish for exceptional durability.Specifications: Tooth Count: 39 Ring Position/Type: Inner Drivetrain Speeds: 10 Drivetrain Speeds: 11 Chainring BCD: 110 FSA ABS Color: Black Defined Color: Black Material: Aluminum