SRAM X-Sync Chainring 40T 110mm Asymmetric BCD Black Model=Hangers Requiring 3 Fasteners HTZ hubs feature a heat

HTZ hubs feature a heat sink attached directly to the 6-bolt rotor mount to dissipate heat and reduce brake fade while using oversize 220mm rotors

Length (mm) 44 Material Aluminum Defined Color Purple Valve Core Removable Valve Presta Med 41-55mm

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SRAM X-Sync Chainring 40T 110mm Asymmetric BCD Black Model=Hangers Requiring 3 Fasteners HTZ hubs feature a heatSRAM X Sync Chainring 40T 110mm Asymmetric BCD 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 SRAM Asymmetric Color Black Defined Color Black Material Aluminum