Full Speed Ahead Gossamer ABS Chainring - 50t 110 Full Speed Ahead ABS BCD 4-Bolt Aluminum N10/N11 BLK ModelNumber=D1552 They use a narrow/wide design

They use a narrow/wide design specifically tailored to road/cx/gravel applications

Holds wheel at vertical 35 degrees from vertical and horizontal positions

Comfortable Air Pad carrying System

provides traction

Speed 11 Chain Width 11/128 Links 116 Primary Color Grey

Full Speed Ahead Gossamer ABS Chainring - 50t 110 Full Speed Ahead ABS BCD 4-Bolt Aluminum N10/N11 BLK ModelNumber=D1552 They use a narrow/wide designFull Speed Ahead Gossamer ABS Chainring 50t 110 Full Speed Ahead ABS BCD 4 Bolt Aluminum N10 N11 Black. FSA Gossamer ABS chainrings are designed to provide flawless shifting with minimal weight and unmatched durability. Precision CNC machined AL7075 T6 alloy TECH SPECS Color Black Ring Position Type Outer Tooth Count 50 Drivetrain Speeds 10 Drivetrain Speeds 11 Chainring BCD 110 FSA ABS Material Aluminum Defined Color Black