SRAM X-Sync Chainring 40 Teeth 110mm BCD Polished Grey/Matte Black Grip Color-Purple that the combi design results

that the combi design results in a compromise that reduces performance—particularly when skating

They can be easily installed to look as if the fork and fender are one leaving your competitors wondering why they are still messing around with zip ties

Material:   6061 T6 aluminum

Core No Fabric Technology Nylon/Lycra Color Bolt Gender Unisex Size S Primary Color Black

There is no difference in performance or features

SRAM X-Sync Chainring 40 Teeth 110mm BCD Polished Grey/Matte Black Grip Color-Purple that the combi design resultsSRAM X Sync Chainring 40 Teeth 110mm BCD Polished Grey Matte Black. SRAM X Sync chainrings feature tall teeth with alternating tooth profiles that hold the chain amazingly well and still provide space for mud to clear. Full CNC AL rings TECH SPECS Tooth Count 40 Ring Position Type Chain Retaining Single Ring Drivetrain Speeds 10 Drivetrain Speeds 11 Chainring BCD 110 Color Silver Black Defined Color Silver Material Aluminum