SRAM X-Sync Chainring 42T 110mm BCD Black BB30 or GXP BB30 or GXP Top-EVA Enables lighter turning with less

Enables lighter turning with less effort

bevel and relieved 6061-T6 aluminum for minimized weight and maximized strength with ZN40 sealed cartridge bearings

X-Sync technology keeps the chain where you need it to be too

The Tanpan 11 is designed to mount directly to adjuster-free cable stops on Shimano rear derailleurs

SRAM X-Sync Chainring 42T 110mm BCD Black BB30 or GXP BB30 or GXP Top-EVA Enables lighter turning with lessSRAM X Sync Chainring 42T 110mm BCD Black BB30 or GXP BB30 or GXP. 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 42 Ring Position Type Chain Retaining Single Ring Drivetrain Speeds 11 Drivetrain Speeds 10 Chainring BCD 110 Color Black Defined Color Black Material Aluminum